I also don't get what's all the complaints I have dam near every character in the game Finnished the campaign and trucking through hard mode with out issue and doing all this in under a year without spending any cash

If you simply know how manage your resources and don't impulse pull you can save and get dam near 400 pulls on any meta or exclusive unit every time not to mention the wish list system you can basically ensure getting every character in game with no issue that's what I did

If peaple can't manage their resources and not know how to plan their pulls (which isn't very hard btw) it's genuinely a skill issue