Yup. Part of me says these aircraft could be something of a problem for an adversary, but the other part says most of the problems are going to be on the Iranians. First of all, you gotta’ maintain that equipment. None of these aircraft are simple (especially the F-14), but F-4 is not exactly a Piper Cub either. If you don’t maintain ‘em, you either park ‘em or crash ‘em. My guess is that they’re parked.
If the aircraft are parked, then no one is trained on them. Their transport aircraft are in the same category. Most of the pilots don’t, or shouldn’t, fly those aircraft. When it happens, it is quite common to have them “crater”. All things considered, their air force is not a credible threat to anyone but their own pilots.
Remember the story that the Iranians were trying to steal F-14 parts.
About a third are actually flying last I heard. They do understand the need to maintain proficiency, after all, we trained their senior officers...
Getting the parts for maintenance is not that hard, as they just send the parts to China, who reverse engineers them and manufactures new parts (including parts for the Phoenix missiles). The real problem is having the personnel trained to do the maintenance.