Sorry for the miscommunication then, since if it seems like I was implying that, I clearly wasn't explicit enough in stating that this sort of tactic would not work because it absolutely requires communication in order to coordinate. The game theory does not support the idea that coordination could happen without communication. AWS, Azure, and GCP are all competitors who are incentivized to make moves that hurt the others at their benefit. Coordinating would be moving away from the nash equilibrium, and that behavior would not be able to be sustained without a defined punishment as a part of a collusive relationship, and they would need to communicate to set that up.