Well it doesn't seem to be the case. What Alain (and dneuer) have said indicates the issue was only the problem with the tour manager.
I quite like many of Gustavo's co-writes as well.
They both might still continue to write with Moz though, who knows.
It is interesting that Moz says there (in the Autobio quote) that this happened before Quarry, yet the album still came out and Alain was in the band, touring the album.
Those are good points, but what is the relation? If there is an issue with how the music might sound different live, how is that a problem for an eventual self-release of the album?
Seems to me the only problem could be if Alain and/or Gustavo didn't want their co-writes on the album, which wouldn't appear to be the case since according to Alain and Darrin they're all on good terms.