You guys crack me up. You're like the brainiac cartoon character who picks up a pool cue for the first time and sinks every shot because "it's just simple geometry." Talking and doing are two different things (Minnesota Fats would roll you so hard.)
Or people say certifications don't mean anything, because anyone can study and pass a test. Which is totally true, but not everyone does, do they?
The best golf pros have a win rate of 20-30%, because golf is sometimes really random. But that doesn't mean skill isn't important.
In any case, I watched my wife try Iudex Gundyr for the better part of an afternoon without beating it, and she's not even that inexperienced with action titles (okay, Zelda games.) Meanwhile you have speedrunners beating these games consistently with donkey kong bongos or DDR pads so no, I don't agree they are luck based games.
Speaking of MHW, a game I also love (charge blade main), it's definitely an easier game than any soulsborne. The fact you can die twice in the fight, or resupply your ample health pool, unlimited healing from your cat, or just crouch and whack a flower and get instant full health all make it a much more forgiving game. (Not to mention there is no way to permanently lose progress.) And while making you chase down the monster and repeat the fight five times certainly might preclude lucky wins, things like Nergigantes dive bomb attack are well within the BS window. (Yes it is easy to dodge when you know how, but the hitbox is pure magic). Nerg is a good example because he has several attacks that bait you into a fast reaction and punish, while the right move is actually to lay flat on the ground and do nothing. this magically allows you to eat the full attack with no damage because MH has very wacky ideas of i-frames (don't get me started on superman dodging). Still this is stuff you're really not going to figure out without a lot of trial and error, and it's far from intuitive. The top tier iceborne monsters require you to grind absurd amounts for endgame gear/gems/etc before you can really attempt them which gatekeeps anyone who doesn't feel like repeating the bonus boss dozens of times, which I think is BS. If MH found a way to reward a greater variety of endgame activities I'd think the post-story would be much more enjoyable, but that's a different debate.
Still, I don't know what planet you're living on where fighting a boss 20+ times to beat it doesn't constitute skill. Humans naturally get better at everything the more they do it, even if some have greater potential than others. A major league pitcher still warms up in the bullpen every game; skilled bartenders practice their pours every shift. Acting like skill is a fixed and finite quality is baffling nonsense.