Assuming the best from the GP, I think they might have meant "whatever" in the sense that AWS enforced their terms of service by enforcing something that they don't hold their other customers to. As you said, this could be for ideological or PR reasons.
The "whatever" being any cause they could justify their actions with.
Thank you; you have done a good job of steel-manning the OP. I appreciate that.
The way it was written, it doesn't surprise me that people didn't read it that way, and downvoted. It comes against a background of people loudly claiming to be oppressed for ideological reasons and failing to support that claim or acknowledging that a serious act of violence has just occurred by people professing the same ideological reasons. At the very least, I felt it was worth pointing out how it reads, so that they might consider it without requiring others to specifically seek an assumption-of-the-best.
The "whatever" being any cause they could justify their actions with.