FD in so many words say that Yamiks does not align with the brand, and is excluded from the collaboration (for this launch at least).
That is about exactly what they should probably have said.
Yamiks is frustrated he is going to miss out on a big release (well, the big release for ED, and a lot hinges on it) which means that early click nectar flows to others.
He's not even missing out - he can (and will) buy the same Alpha key we all get. I think most of his annoyance was aimed at the first response - which sounded bogus. And in deed turned out to be.
FD could and should have been better at communicating why though- the later message should have been the first.
The second message should have been run past a colleague as it was too personal / preachy. All they needed to do was what you said 'you don't match our brand image so we won't be supporting you'. Yamiks would still have been unhappy (because ... Yamiks), but I think he would have understood.
In some ways they've made the same mistake that annoys them about Yamiks himself - misattribution of bad intent:
Yamiks: I don't like this feature - the game devs must be idiots! (They're not - they jusy made a different decision)
Fdev: Yamiks we don't like your language - you must be trying to upset people! (He's not - he's trying to be humorous & edgy)