Some people might even say bombing hospitals of your enemies isn't off limits. Those people would be the Russian politicians. Let's do better.
I wouldn't think Russian politicians called for hospitals and Ukrainian schools to be hit, but that's just not how war works. Certainly, US politicians weren't calling for an Afghan hospital to be struck with missile fire.
Russia is admitting to intentionally attacking the hospital.
Their claim is that the hospital was long abandoned by patients and has been used by the Ukrainian military. Ukraine says the hospital was in use by patients and that 3 were killed and 17 were injured. There are photos of injured pregnant women walking away from the debris. Russia claims these photos are staged. Speculation from the West is that Russia is attacking civilians like this intentionally to break the Ukrainian people's spirit.
Now you know both sides. Do with it what you will.
(1) We didn't do it. (I think this story also had “Ukraine bombed it themselves”, but that may have been added by unofficial proxies and not part of the official explanation.)
(2) We did it, intentionally, but it is long out of use as a maternity hospital and is instead an Azov base and so part of our legitimate war against Ukrainian Nazis, and the pregnant women shown are crisis actors.
(3) We’re investigating what actually happened.