Fist of all, Juzuru and Javi are much more mature and experienced skaters than Evgenia and Alina.
Secondly, when Javi is Brian's focus, as last year due to Juzuru's injury, Javi is very "on". This year, as it was two years ago, it's Hanyu the focus. Results speak clearly.
Thirdly, I think Brian has a greater penchant for Javi, he sees him an an alter ego. But Javi must follow the rules and not going too early on his own path.
Fourth, I believe Orser is a clever hen-house owner, who knows how to strategise and make gerarchy clear to everyone.
Fifth, the rivalry among skating schools in Russia is immensely greater than in other countries, because they need Fed's money. Eteri has won senior and junior worlds championship, Euros amd Nationals, but not the Olympics, as CSKA.
So the pressure on her athletes will be much more, they must win not only for themselves, but for the school too.
Brian simply does not need to prove anything to anyone, two Olympic gold medals, more than three senior Worlds championships gold medals, GP finals, silver here and there, junior competiotions too...