First, the plausibility.

1. These data centers are highly accessible. You could hit many of them with a thrown rock; they are so close to publicly accessible land.

2. Iran could very easily develop assets in the US, either by moving them through the border or by developing sympathetic or manipulated assets through standard human intelligence practices.

3. Iran has consistently been able to provide ranged explosive resources like rockets to Hamas and Hezbollah despite significant import restrictions and interdiction efforts.

The motive:

1. These data are a significant resource within the backbone of the US military industrial complex.
2. It would introduce inconvenience to both the public and the corporate world.
3. So far, these wars have been allowed by the public despite zero benefit because they have also been experienced as zero cost.
4. No one likes these data centers and may actually improve Iran's PR, critically above Israel's, which isn't a hard bar to pass for the US public right now.

But how would this play out in the long run if they did this? Would it successfully deter the US? Or would it give the US public the motive to back the US's efforts in earnest? So far, the US doesn't have any good answers for why we are attacking Iran. But that doesn't matter because the public doesn't need good answers. It doesn't cost us anything to let the US military do what it does, and few people worry too much if it is a sign that our military has been subverted against the public's interests. But more people might think about that if these wars mildly impact them with low casualty attacks that they would never experience if the US pursued only its own interests.

BTW, these buildings have almost no one in them. Mostly empty. Knocking a hole in the correct side of one would lead to zero casualties and would avoid the human impact story that would hurt Iran's public perception relative to Israel. Even despite that, if the public were honest, they'd realize that one AWS guard is literally nothing compared to children being carpet bombed by Israel. Is there a PR war for US public opinion between Iran and Israel? Am I wrong to think Iran is winning that war at every level except the political class? They are pretty murderous, but not committing genocide is a pretty substantial advantage.