I think it's gotta have a lot to do with how games have changed in the last decade+ and we're so used to them now.
I bought the Mortal Kombat Arcade Collection a couple months ago, and while I always knew MK1 was difficult, I was great with MK2 back in the day. But then I tried playing it in the collection and all I did was yell at the controls. Back in the day, they seemed so fluid, but today I could swear they were nothing but jerky.
Then I go and play the 2011 Mortal Kombat, and everything feels right, even though it's still all the same (up = jump, down = duck, etc.) It's odd.
"Good... Bad... I'm the guy with the gun."