60fps is basically fine as long as you are unaware that it can be any better, but once you find out you are forever spoiled by the knowledge.
I know there's a sizable contingent of people who just think a bigger number is better, but realistically this is a device for passively consuming text and video content that is typically around 30 fps anyway. Why waste the battery power on faster refresh?
Without this, it'd be very hard for an average user to "feel" a performance difference between an A18 Pro in the Neo and say as far as the M5 Max in a MacBook Pro unless they had a "special" use case which really needed the extra CPU/GPU cores.
Of course, they can't stay forever on that. E.g. with the iPhone 17 they finally flipped the non-Pro over. Probably because it was starting to make the iPhone seem sluggish/stuttery compared to other phones more than it was making the iPhone 18 seem fast. Tablets have never seemed to be as fierce a market in terms of your average Joe comparing them, but I'd expect the same switch to being a liability instead of a tool will happen there as well (if they aren't already late to the game).
Whether the hardware can keep up with Liquid Glass and push 120 frames a second is a different story, of course.
"I don't have an issue with it, so most people also don't have an issue with it"
False Consensus Effect (or false consensus fallacy):
It happens when someone overestimates how much other people agree with them, assuming that their own personal beliefs, values, or experiences are the default for everyone else.
It's probably not actually as hard to go back as we think it is, but holding on to stuff is in our genes.