We are largely seeing the same post Bloom pr campaign that we saw with previous Henry firings, the disparaging of the departed. Notice that the bad mouthing is always done by surrogates who never directly quote FO sources.
Once again, I do not think John Henry had any specific reason for firing Bloom. Nor do I think Bloom could have done anything to save his job. In Henry's mind it was simply time for a change. Bloom's four years were up.