Damn, this communication and attitute of the leaders and devs is very chilling. I still have confidence in the technological aspects but the leadership worries me a lot.
This will harm the project long term and I am concinced it already has. You should hold back your huge egos and calm your temper on public communication.
Those people have reasonable claims and should be treated accordingly. It is understanable that as it takes longer and longer, their patience shrinks which ultimatly results in anger.
Don't respond with anger and arrogance, better find acceptable solutions. Be open to critique, also and especially in this case when it refers to your personalities. Absorb, reflect and grow with it.
It will pay out long term, for your characters and the prosperity of the IOTA project. I'm still supporting and hope it will remain so along the journey