I'm of two minds on this. On the one hand, I always found it odd that a guy who never liked super heroes (he supposedly made comments saying as much when he was at Vertigo) would be put in charge of an entire super hero line. I mean... what did they think was going to happen?
On the other hand, how much control does an EiC really have these days?... especially since Marvel was bought out by Disney? Was Alonso really calling the shots or was he just following the directives of his bosses? Is he just the fall guy for someone else's poor decisions? If that's the case, then Cebulski probably won't be able to make too many changes to the line.
Totally understand your points above, but Alonso's piss poor management of Marvel characters goes back to before the Disney purchase. Admittedly, nothing is as bad as what has happened to the line over the past couple years of blatant and terrible character replacement directed by Disney's diversity push.