Holos not collabing with ex-Holos also drained the resources of the ex-Holos heavily, in cases like this where there is a schism between ex-Holos, the collab choices become minimal (unless they start collabing outside the garden)

A good part of the entertainment value of a Holo or an ex-Holo is the collabs, not only with their friends but other talents that could work with them, without Holos, the "Avengers" had a very limited pool, now even smaller.