Fiddle has a point and click 3 second hard CC with pretty long range. It's incredibly overpowered. Unfortunately, its on Fiddle. Same basic reason people play Blitz botlane. You have to account for the abilities of the champions you are facing. Some champions demand specific counterplay. This doesn't make them overpowered. It might make them toxic depending on your definition, since they will dominate stupid/unknowledgeable/lazy players. Personally I don't have a problem with it.
Toxicity aside, Blitz is still strong right now.