Because the damn things were leaked like two months early; destroys the cadence for fanart (“Do I draw the thing now, but miss people that avoid spoilers, or when it airs, but too late for the spotlight, memes, and people that watched early? Eh, I’ll draw something else”) and splits discussion (people that watch early and get it out of their system, then people that watch on-time and feel everything’s already been discussed, with the two groups missing eachother’s discussions).
Leaks and thefts did this show and fandom far more harm than any episode or character or Hasbro decision ever did.