I mean, I think the issue everyone else in this thread is bringing up is that there's an acknowledgement of mobility creep pretty much every time someone brings it up, but nothing ever actually gets done about it. So we keep having this issue where there's very little reason to pick an immobile champion ever, because for 90% of immobile champions either
A. There exists another champion that does the same thing the immobile champion does while being mobile; for example, why would I ever pick Udyr (a high-damage jungler with 1 hard CC) when I could pick Vi (another high-damage jungler with mobility and a hard CC).
B. They are screwed over so hard by enemy mobility that their advantages compared to the mobile champions are completely irrelevant. Take, for example, Ashe. She does something that no other mobile champion in the game does (ranged permaslow) but she's still not pickable because if the other team picks any kind of mobile assassin she's just going to feed them kill after kill.
Let's take a look at some of the other members of the immobile champion roster for some more examples.
: The immobility poster boy and IIRC the only champion to never be selected in any LCS game ever. Yeah, he will burst 2-3 people for 75% of their health in a teamfight. There is no reason to pick him over someone like Kennen (who bursts their entire team AND brings CC AND has mobility) or Xerath (who will also burst your team, but will do it from twice as far away as Brand).
: He has an amazing ult and amazing utility overall in his kit. The problem is, unlike a Kennen or Wukong, he has no way to ever actually get in range to use his ult. There isn't really much reason to pick him when other champions have easier, more reliable engages.
: She has every tool you could possibly want if you were trying to win bot lane while scaling into late game. But without mobility she simply can't do anything about someone like Zed or Yasuo. I know these characters are meant to be her counters but it still feels really stupid to win lane, get to mid/late game, go 100 range too close and get blown up before I can actually do anything in response.
: Good luck trying to get in range to fight anyone ever. Udyr used to be one of the top guys for early damage because his Q procs were so strong. Every new champion who comes out with a gap closer weakened him, reducing the number of times where it was viable to pick him. Then Vi came out with obscene early damage of her own, decent jungle sustain, and actual gap closers, and there was no longer any reason to play Udyr.
This is kind of a short list, and that's intentional. I didn't want to drag out this list too long because there are some immobile champions who are good (
because her kit is obscene,
because he deals so much damage that it's worth protecting him,
because he just brings you to him) but also because there are so many champions with other issues to deal with in the immobile champion pool and bringing them up just feels like a cheap shot (
).
TL;DR actions speak louder then words