Aries: you are 100% right. Ppl who don’t know can’t judge and can’t say anything.
We can objectively point out which behavior in response might be wrong, even if we can’t feel how much you’ve suffered.
I lived through the opposite situation; our downstairs neighbors were elderly people, and the man (I think a holocaust survivor) would fly into a rage and angrily bang on his ceiling (our floor) every time the kids made the slightest noise. And this was after we installed padded carpet at out own volition and expense!
Hatzlocha in your new place.