Knock-ups?
Do they seem to be a bit strong for being uncounterable (besides dodging) and being un-reduceable? Suspensions like Yasuo ult can be QSS'd iirc, but knockups...There's no tenacity or Mercurial that can do anything about it. Theoretically if any knockup happens, a team can chain them together and all you'll see is Jinx floating in the air for 4 seconds while being more than dead (especially if one of the knockups is Malphite, which it probably is).
I believe that's one of the reasons Malphite is so strong lately (and AP Malph always strong), his ult can't be countered besides by him messing up or you dashing/flashing/?? as pure reflex or luck. Not like it's a high cd when he gets FH/Frostfist either.