The authors aren't mocking Musk at all. The tone of the letter is professional yet direct and constructive. As far as questioning "management decisions", the

The authors aren't mocking Musk at all. The tone of the letter is professional yet direct and constructive. As far as questioning "management decisions", the closest example of this that I can find is the mention of the company's selective application of things like the "No Assholes" policy, which seems like a completely valid problem to surface. For the most part, they're questioning his tweets and their effect on employee morale. As for the 2nd example- which of those 5 points are the letter's authors guilty of? The only one of those 5 that looks even remotely relevant is #4, but even that's a stretch since there's a difference between "criticizing" and "disrespecting". Musk might believe those two things are one and the same, but they are, in fact, quite different.