He is a current core team member, not former [0].
I'm not too worried about his claims. His claim was about the Foundation being shadow-controlled by Amazon (they employed the board chair who had more influence while they lacked an Executive Director). The foundation manages the assets (donations, legal marks, etc) and has no control of the actual language. For Amazon to take control, theyd have to get the board involved and then leverage the assets against the developers. Nothing like this has happened and there is now an Executive Director.
When observing that incident, I noticed that those joining the bandwagon didn't seem to have direct knowledge of the situation. Those that did, stayed quiet or made general statements about the claims not being accurate regarding why there wasn't an Executive Director yet (interim or not). To me, this suggests something happened that, professionally, people feel should be kept confidential and I try to support that by not doing further speculation.
[0] https://www.rust-lang.org/governance/teams/core
