I'll preface this by saying that really none of us have a clue what has truly happened.
But I don't think what is being said is entirely unbelievable. We've been in this situation before many times, when a player is decided upon leaving and/or not signing a new contract. I could be wrong but I don't remember Wenger ever deciding to drop Fabregas, van Persie, Adebayor, Nasri or Sagna etc, especially not when we're in a tough top four battle and facing a rival in a very important match.
As far as I remember Wenger utilised all of these players as much as he could without a hint of pride or annoyance creeping in and causing him to drop the player to make a point or display his power as the boss. He played van Persie in every game because he was by far our best player and we really needed the points, similarly to how Alexis is our best player by a distance now and we need his goals and assists because every point will be crucial for the rest of the season.
I think it is perfectly possible for us fans to be on hashtag team Alexis and totally accept his frustrations with Wenger/the club/his teammates and see why he wants to leave, but accept the possibility that he over stepped the mark and might have behaved unprofessionally.
I don't know why it has to be quite so black and white in that we either fully support Alexis no matter what happened and dismiss anything negative said as the clubs PR campaign, or go the other way and say that we don't want players who behave that way and that if any player wants to go they can fuck off, I'll hold the door open for them etc etc.