I just watched mob psycho 100 because some people I know were talking about it.
It seemed okay, not really anything special for an anime really, but well enough made and somewhat interesting. I guess I'd give it a solid 7/10. I think the best part was at the end when the dude lectured all the final bosses into submission, and really brought up how silly the whole super power thing actually is. If that was the actual end of the show and it didn't just go right back into "well no actually super powers are cool as heck and a legitimate way to settle things forget that dude" I would have probably said it would have been much better, but ah well.
I kinda think you read into that different than what was intended. Past that discussion, what was actually accomplished? Yes, there was a fight, but the thing about fighting is that it's inherently destructive. If they hadn't used any psychic powers at that point, they would have been better off. Yes, they have a big hammer, but it's only good when the problem is a nail, and how many nails do you see in life? When you use a hammer but the problem is that your newborn baby is crying, you won't get a positive result. So the show told us the right result and showed us what's wrong with the wrong result.
Well, I might just be noticing this as clearly because I've read the manga though, and the end of the second season is even more explicit about this. Like a lot of things ONE does, it's a slow series so things don't always show what they're really about until later on. Like how a lot of anime-only fans didn't like Reigen at first.