I find the attitude that games can be better or worse on account of their mechanical systems irritating.
The primary lens through which most people on gaming forums look at games these days is genre-centrism, and what is a game genre (to your average IGN reader at least) but a compound of mechanics.
This is a kind of revisionism itself, because up until a certain time people didn't regard or relate to games in terms of Genre. That Blaster Master had similarities to Metroid was more of a side note, we liked it because it was (to your point)
cool to drive on walls in a tank, and because the graphic design was cool, and the entire concept of a subterranean world hidden down a hole was cool and imagine the possibilities because human beings have been imagining what's at the center of the Earth for millenia because it's cool if there were monsters and secrets down there. Not because it was the new tanksroguevania, which is how people look at things now, how much the game did the genre and sheeit. It's about whether you can backtrack and get the double jump and get to the new area and find the slide and get through the hole and find the red thing that opens the red doors/blocks and you have to have a double jump and a dash because that's the genre and it's weird if you don't but also wow Dark Souls is a metroidvania and this other game is like a metroidlitelike and WHO GIVES A FUCK? I got into video games largely because of Castlevania, because the music was mind-blowing for a video game and halloween shit was cool to me, not because "Wow this is really creating/revolutionizing/defining the side-scrolling monster whipping genre! I need more of those mechanics by God!" And Contra to a lesser extent, for the same reasons except replace 'haunted house' with 'Arnold/Rambo fighting Aliens shit'. Maybe I was a fan of the Konami genre. I'm sure someone on Resetera thinks there is such a thing and that that's very important.
Recently saw an exchange where someone noted that the N64 had a limited library and inferior-to-PS1 sales and a kind of rebuttal was "yeahbut it had genre-defining games!" Or you'll often hear about how so-and-so created a whole subgenre. So what? Is there something inherently valuable about that? All you need to "create" a genre, a game genre at least, is a thing and certain number of people to imitate that thing. But just because people imitate that thing, does it mean that thing was meritorious in the first place? For that to be a convincing stance, we have to believe that people in general are possessed of good taste, maybe even sound mind, which goes against the general worldview of the Codex. But if a bunch of mental and cultural defectives decide to imitate a game, would the first thought be "well that game must be doing something right if all these retards are copying it!"? Probably on Reddit it would.
And this is a form of that slave thinking. They are enslaved to prevailing narratives, and enslaved to the dopamine hit of a game and want more of that hit and the easiest common denominator they can see to come upon a similar hit is by looking at genre first and foremost, because having not thought about games past the prevailing memes and narratives and conventions, they think THAT is the primary source of the effect.
Reasonable Person Enjoys a Game: "Man i just played this awesome game called Metroid. The suit and the aliens and the missiles are so cool. Wonder if there are other games so cool?"
Redditor/Twitch chatter/Youtube commenter: "You should play [REDACTED] my guy. It's an awesome game in that genre"
Normal: "Wow really? Never heard of it. You play as a cool space adventurer with a cool space suit?"
Reddit cuck: "No, you play as a medieval guy with a cone hat, but..."
Normal: "Can I get different space weapons?"
Genreslave: "No, there is sword but..."
Normal: "I can explore an underground space planet labyrinth?"
Dysgenic: "Also no, b-
Normal: "I thought you said it's a similar cool game?"
Memeslave: "It is. It's a METROIDVAAANIAAAHHMCUMMING!"
The genre
slavescentrists (i.e. the average "hardcore" gamer today ) are not looking to engage with a vision, a personal work, an idea, an aesthetic, an idiosyncracy (like not having a map or wall jump in any metroidesque game, ever again), they are consumoids looking to constantly consume from an endless fountain of that thing that must have been because of
that genre (and thus those now-codified mechanics), because that's the meme that explains how things go. But maybe there's a reason that "RE with dinosaurs" didn't catch on like actual RE, despite supposedly being the same mecha- I mean genre from the same people, to the confusion of the average Youtube comments section. Maybe it's not about 'finding thing go into thing-shaped hole for me open door, now dinosaur!' Maybe it's simply 'like more zombie blow'em head with shotgun,' or some other thing that has nothing to do with but-it's-mora-surviva-horra.