My understanding is that Jewish schools in Iran are administered and funded by the Ministry of Education. Government-funded schools generally operate on the same calendar — this change in policy attempts to accommodate Jewish religious observance. Ideally, educational systems would instinctively strive to provide equal support to students of all faiths. However, I should remind you that this is, sadly, not the case in several countries:
Also, as the article notes, the argument is not that Iranian Jews — or Iranians in general — live in idealized circumstances but that Iran’s re-engagement with the international community has generated certain positive developments (a trend that we should cautiously encourage, rather than irresponsibly obstruct).
As for your suggestion to contact an Illinois synagogue: Do you not respect Jews presently living in Iran enough to value their own assessments? Why should we collectively dismiss the views of Iranian Jews actually living in Iran — aren’t they the best judges of their own reality? Or do you, like Jeffrey Goldberg, view them as a herd of mindless stooges?