Why is it assumed that they cannot get that information in other ways? If only they had an ally with satellite imaging capabilities that have a vested interest in seeing the US struggle. Sure, they can tune into CNN and see what's being said there too, but to assume that's their sole source of information is just farcical.
There's a limit to how many photos you can take with somebody else's satellite. Even if the russkies are complying with every Iranian request, that would at least serve to deny russia the ability to use their own surveillance resources to their fullest potential.
If only other countries just gave away their sovereignty then we wouldn't have to preemptively take away their sovereignty because if we don't then they will do it to us. If we don't instigate war then it will come to us and our stocks won't go up and contracts dry up.
This allegedly ally has likely considered all the potential advantages and disadvantages and is acting accordingly. Sometimes the smartest move one can make is no move at all.
Iran reportedly bought[1] a TEE-01B satellite from China in 2024, giving them quite detailed images directly with ~half meter (~1.7 feet) resolution[2]. Granted they reportedly also got help from Chinese ground stations.
So they could probably just check themselves how it was going, unless they wanted rapid feedback I suppose.
[1]: https://www.reuters.com/world/china/iran-used-chinese-spy-sa...
[2]: https://thedefensewatch.com/product/tee-01b-earth-observatio...