They’re at war. The US and Israel are bombing everything anyway.

Strategically, Diego Garcia is a forward operating base for irreplaceable B-52 and B-2 bombers. Placing them at risk on the ground seems like a reckless call, more likely the US pulls those resources back to the US.

I’m not rooting for Iran, but since the US has who they have making the calls, Iran has obvious strategic cards to play - escalation benefits them.