You mean go watch someone who queued up with 3 in a premade, told them all to set up kills for him, and then told the opponents they were streaming and begged them not to leave, so he could get 9 pre level 7 kills and stack 200+ mist and 60 kills?
Bunny is a LCS/Worlds tier player. Vs people MUCH worse than him. That's not what happens in real games.
(I see merit in watching them, because 1 in 5 players MAY be decent vs Bunny, so it's not a complete shutout, and does show snowball potential. But that is NOT EVERY GAME.)
Same with PA.
Senna is basically old Nasus: Either be allowed to farm hard in lane and become a 1 shot king, or get starved by being traded/poked. If she's not allowed to freely poke champions, she doesn't do what Bunny does. She starts to fall WAY behind.