Effective altruism is based on the core belief that all people count equally. We unequivocally condemn Nick Bostrom’s recklessly flawed and reprehensible words. We reject this unacceptable racist language, and the callous discussion of ideas that can and have harmed Black people. It is fundamentally inconsistent with our mission of building an inclusive and welcoming community.
— The Centre for Effective Altruism
in addition to all of this, the statement compounds the already existent trust problem EA has. It was already extremely bad in the aftermath of FTX that people were running to journos to leak them screenshots from private EA governance channels (vide that New Yorker piece). You can't trust people in an organization or culture who all start briefing the press against each other the minute the chips are down! Now we have CEA publicly knifing a long-term colleague and movement founder figure with this unbelievably short and brutal statement, more or less a complete disowning, when really they needed to say nothing at all, or at least nothing right now.
When your whole movement is founded on the idea of utility maximizing, trust is already impaired because you forever feel that you're only going to be backed for as long as you're perceived useful: virtues such as loyalty and friendship are not really important in the mainstream EA ethical framework. It's already discomfiting enough to feel that EAs might slit your throat in exchange for the lives of a million chickens, but when they appear to metaphorically be quite prepared to slit each other's throats for much less, it's even worse!