Some level of eonomic prosperity is necessary to keep the government's key supporters (e.g. the ruling class and the army) satisfied.

Their economic prosperity is more linked to Oil than Internet.

Plus, the elites economic prosperity is also linked to their not being protests and for the toppling of govt to not occur and they might be willing to offset some losses to keep the average population in check

Which sucks for the average iranian but we saw how their protests were cracked down with 20-30 THOUSAND people killed and Iran hiding bodies etc.

I have heard that all shops are either shut down or running at the most minimum capacity. Economic prosperity just isn't a question now in Iran.