Doc ki galti nahin hai. It's actually common practice that if someone's leg hurts after a fall, that you should do X-ray.
Appu ki accident ki time, she fell but she was still able to walk so that means nothing was fractured. And among all the drama at that time, I don't think they even showed a doctor coming to check her or anything.
But yes, BS ki brain Netra ke mamle mein off hoti hai. Hopefully this is the last time. If it means that Netra isnt invited to their house anymore and we don't have to deal with BS even remotely defending her after this, I'm willing to bear the drama.