This is a fascinating discussion. My two cents (as someone reading it at face value and having no inside knowledge whatsoever):
If the biggest dirt one can draw on Vaughters is that he hurt a rider's feelings by not responding to him, was petty and personal about a contract dispute, and then pulled out both PR and press-release barrels when the rider and his representatives sent ambiguous emails that could have been interpreted as blackmail, he comes out looking better than most people involved with professional cycling.
He seems like he genuinely overlooked the name of De Moral and didn't really care about Lowe, which is not great. He seems like he was kind of a distant jerk when it came to settling the contract, or at least he let his representatives deal with it and when he saw an aspect of it that he didn't like (the perceived blackmail), he jumped on it somewhat disproportionately. He seems a bit obsessed with keeping the good name of his team in the press, with just enough truth and just enough spin to slide by, which is understandable from someone in his position. But he doesn't, from anything in this exchange, seem to be covering up any enormous lie about what the team is about; in fact, Lowe's emails seem to reinforce this as they basically read 'I, as a rider on your team, wouldn't expect to be sent to Del Moral' and JV's response reads 'wait, what? You got sent to Del Moral? wtf?'
Regardless of how one feels about the interpersonal angle of this, it really doesn't seem to be blowing the lid off of anything.