Seriously, dude? If the IAF flies its Rustom drones over sensitive military sites in China, you'd expect the latter to sit on its ass and not do a thing about it because of "international law" (whatever that means)?
The cognitive dissonance on this forum is astounding at times.
I don't think China accused it of being against international law, but against international practice.
In this case, China was in contact with the US and had confirmed publicly that it was theirs, so normal practice could have been to discuss a means to secure it and minimize damage to anyone.
Instead, presenting it as a threat by both government and media, and then destroying it as if it was an enemy to be vanquished, can reasonably be described as an "overreaction" which is the term the Chinese government used as well.
That's right:
But according to some CCP shrills on this forum, this must've been a violation of international law.
As far as we know, the balloon shot down by the J-10 was not claimed by any other party and as far as we know no one was in contact with the Chinese government about it to claim that it was theirs.
So yes, somewhat different.