It's perfectly justified if Eteri says she didn't like Brians comments, or answers with any form of reasonable adult arguments. But complete and childish nonsense like "It seems our success hurts him so we must train even harder to hurt him even more" is just... what the actually freaking what? I had to read that 3 times before I believed my eyes. There is a big difference between defending your skaters and acting like a 5-year old who got told her plush toy isn't the prettiest on the playground.
(And while I didn't like Brians original comment - or what it appeared to be - either, I'd hardly call it "rude" to wonder if she'll be able to still land quads in seniors.)
Also, how do you know "concerned" is just a front? Is it for everyone or just Orser? Is it such an unbelievable concept that people might wonder how the bodies of still growing young girls will deal with a kind of strain and pressure never applied to female bodies before by not just practicing quads, but several types, and that with what appears to be a bigger 'work load' then elsewhere too? Is it so unreasonable that after we had other students of Eteri suffering health issues that seem to be related to overtraining or not taking injuries serious enough (most apparent example: Adian), people are concerned for young girls in the same environment doing what they do? We shouldn't condemn Eteri for something that hasn't happened yet - Sasha &Co are healthy (and hopefully will stay healthy), so taking the pitchforks and chasing her round the village for 'ruining' them is ridiculous too. But just voicing concerns is normal

And if Brian was apparently so irked with Sashas quads, he could actually advocate for a higher age limit. But he isn't.