DA:I and Andromeda fail because nu-Bioware has completely forgotten the basics. From the start you are bombarded with LOOK AT ALL THIS EPIC SHIT. But the magic of RPG is in the journey. Best stories always follow the same pattern, they start ambiguously and slowly unravel.
You don't have to be literally starting in a basement with a wooden stick and killing rats, but a 50 hour game needs to take it slow. If I'm fighting with a Demon King within first 30 minutes and then suddenly I find myself doing filler quests and picking flowers, clicking on uninstall.exe becomes inevitable.
While I agree with the sentiment, these aren't even close to the worst problems DA:I or ME:A have. They don't even have the same problems.
DA:I's main problem is bloat. It's chock full of fetch this, gather that, craft the other, and mechanics like the vile levelled loot are there to force it on you. Strip out all that and you end up with a superficially much smaller but much more focused game, with a loot system where finding or crafting a cool piece of gear actually means something. The story is more than good enough to keep the game going, intro Pride Demon and all. All it really needs is some drastic editing, cut out about 75% of the side-quests and all of the proc generated shit, get rid of the levelled loot and replace that with hand-crafted genuinely cool unique items and a crafting system that was frugal enough with components that it meant something, and it would
easily be the best DA, and be a solid contender for top AAA RPG of its generation, up there with Twitcher 3 except different.
ME:A's main problem is shit content. The companions are shit, the story is shit, the side characters are shit. It just completely fails at selling itself to you. The gameplay is actually fine, at least as good as in any of the other MEs, the problem is that the game entirely fails to make you give a shit about any of its shit. Shit, there's a lot of shit in this paragraph, like the game. Which is shit. It's basically unsalvageable; only thing you could keep from it is the core gameplay and systems, but you'd have to build pretty much the entire game over from scratch.
No offense man, but you're tripping. The only thing to save Dragon Age Inquisition would be to completely recreate that game from scratch. There is not even one thing that works properly in DA: I - maybe some of the companions (but then you have Sera as well, so...).
Sure, game is bloated as hell. Enemies' health is ridiculously bloated, loot is more common than grass, there is a hundred of unnecessary fetch quests.
But there are much more things - basic things - that are broken. E.g. - possibly the worst combat system ever designed, combined with this game's inability to choose between being an action game or an RPG. You could lower enemies' health by 70%, but it would only make the problem less annoying - it wouldn’t fix it.
You would have to recreate the mechanics of character creation and progression - making it so that your choices would matter (combat- and narrative-wise). Right now it’s impossible to create a "character" in this game, because there is no tools for this character to express itself. You would have to rewrite most of the dialogues, 'cause right now they are written in a very linear manner (heck, you would have to change the whole modus operandi of BioWare and convinced them that the game should be about players and theirs characters, not developers creations). So, new mechanics, new dialogues. Then you need to make sure that these things work smoothly and that they’re interconnected – something that BioWare was never good at.
Still, it's not enough. Now you have to make the story somewhat interesting (because c'mon, DA:I is better than Andromeda, but it's still crap). But, and this is crucial, you would have to to make it responsive to players' actions (since the whole point of the game is that you're a powerful political leader and you're choices matter – or they should anyway). And that requires a lot of changes, basically new script.
Since we at this, you can’t just cut side-quests and leave this like that - you have to make a new ones to fill that gap. Ideally they should contain a huge amount of C&C, because that what the game is all about (or so it claims). In the same time, you’re stuck with the environment that was already made – unless you want to change that as well.
New mechanics, new combat system, new story, new dialogues, new main protagonist, new quests - sure, fix of all that and DA: I might be a good game (then it’s all about execution). But you may also just give up, because at this point you're making a new one.