Reactor grade enriched uranium is not the same as HEU which is not the same as weapons grade. It still takes significant enrichment to reach the weapons level and there's no indication that the Iranians have established that capability.
The process to go from unenriched to reactor grade is trivial compared to going from reactor grade to weapons grade.
OTOH should they continue with the development of enrichment capabilities they could develop this capability, but there's no indication that they're there yet. I would like to make sure that they never get that capability, but it's difficult to justify preventing them from being able to produce reactor grade U without the assumption that they will do something evil.
The process to go from unenriched to reactor grade is trivial compared to going from reactor grade to weapons grade.
OTOH should they continue with the development of enrichment capabilities they could develop this capability, but there's no indication that they're there yet. I would like to make sure that they never get that capability, but it's difficult to justify preventing them from being able to produce reactor grade U without the assumption that they will do something evil.