Because they're too scared.
They actually made a show with the Main Character being a dumb, "crazy", selfish, snobby, autist who was turning into a cuck, the idea was something unusual, but the backslash were those star fans that went apeshit, convinced that "the mains character should get the love of her best friend" and blindly posted any simple hug as the proof of their love.
Meanwhile a side character was all clean, casually living her life and getting the obvious attention and love from the co-protagonist, being so pure she kept a demonic curse supressed for over a season. Both Marco and Jackie should be praised for that alone, for being such a pure love and being such a lovely pure girl. Their only crime was to find actual love in a show that tried to turn everything into LGBT or racism/politics shit.