Yes, in this case. You need a villian as a centerpoint of conflict for a limited run season.
This isn't TNG with an unlimted number of episodes to spend on philosophical musing, this is a 10 episode story that is meant to wrap up the TNG era.
We had a villain in Vadic and the rogue changelings. Then at 11:30pm, we brought in the Borg.
I think it's just people finding things to bitch about for the sake of bitching and being contrarian or generally hard to please. Or at least for some people it is that.
Or people have genuine criticisms about the show and the choices made. I can be critical and enjoy it at the same time.