I mean, critical failures were a thing before, also. Taking 20 is just less explicitly lined out in 2e, as any activity with no practical penalty for failure just lets you keep retrying it until you succeed.

In some cases, I feel like this is a major flaw in the way skill checks work. For example: an athletics check to pick up a heavy object. If you're actively in combat or something, great- timing is important. In any other context, are you strong enough to do it? Then do it. The inclusion of die rolls is just clutter, IMO.

Anyway, my 2c. Feel free to disregard. I struggle to not comment on everything, sometimes. XD