We should wait for more corroboration before we jump to conclusions about circumstance and attribution. In the Russia/Ukraine conflict, I've seen Russian's use footage and images from other conflicts to claim Ukraine is doing something underhanded.
We've already seen Israel do this over and over again in Gaza. We've seen Zionist media try to lie about it, but if you've been following what Israel has been doing for the past two years, you'll know that this is how they operate.
These days kinetic wars are accompanied by online information wars. What's the harm in waiting for corroboration and more evidence in a rapidly evolving situation?
It's certainly credible that US/Israel bombed a school. But it's also credible that Iran would lie about US/Israel bombing a school. In these situations we need a higher standard of evidence than "credible". I don't think that's a radical position.