AITA for calling out my brother-in-law after he scrutinised a high chair we returned?

A few years ago, my brother-in-law showed up at our house with a used high chair his son was finished with. It wasn’t described as a loan. He just gave it to us. Our daughter is now almost 3 and has used it daily since she was about 5 months old.

He’s now expecting another baby and asked for the high chair back. Our daughter still uses a high chair, but we agreed to return it.

As it had been used daily for over two years, I didn’t want to hand it back without making sure it was in good condition. At one point I mentioned buying a new replacement to avoid awkwardness, and he immediately told us which shop had it on sale. He later referenced again that buying new would have made sense given the daily use.

I decided to try thoroughly cleaned the original chair before committing to buying a new replacement. I scrubbed the frame, washed the seat, cleaned all the creases, etc. Given its age and heavy use, I felt it was in very good condition.

When my husband dropped it off, my BIL switched on a head torch and inspected it closely, looking into creases and under the seat, and commented that he still had to pick out bits of old food. My husband said it felt awkward.

I later messaged him saying the inspection felt excessive and insulting given the effort I’d made. He replied that the inspection had been relayed “out of context,” again brought up that buying new would have made sense, and said the chair was “grand.” He later told my husband it was “bad form” to tell me about the inspection and that he shouldn’t have said anything to me about it.

He thinks he was just being careful for a newborn and that I overreacted. I think asking for back a heavily used item that was originally given as a gift, repeatedly suggesting we buy new, and then scrutinising the returned chair was unnecessary and disrespectful.

AITA for calling that out instead of just letting it go?