Why would iran hold tether at all during this conflict??

Maybe I’m looking way too deeply at the whole thing but considering Iran and the US is at war with each other, it seems only stupid for Iran to try to utilize tether for anything at all. Especially trying to use tether as the medium in which they collect fees for the straight of Hormuz. Are they really that ignorant? Just a simple oversight? Or is this intentional and there’s another part of the story that im missing.

For those who haven’t heard, Iran was collecting bitcoin and tether for the straight of Hormuz tolls, tether is centralized, and tether froze all of irans crypto wallets within the last 24 hours.

Maybe there’s something obvious I overlooked but I just don’t buy that Iran on its face would be that stupid.