GP was disabled due to lore and not due to bugs
If
or
or
were disabled, many people would actually complain, since they have a pretty big fanbase. Lee Sin mains were even powerful enough to convince Riot to revert a nerf that they were planning for him. This is something that many other champions mains could never accomplish (see:
mains)
But since it is
nobody cares, since he is a champion that is "unviable for competitive, weak for SoloQ, gimmick, countered by 90% of the champion pool, does not bring much for his team, has a weak lane phase and falls off late game".
