To add to your point. Just because there's a tradeoff one way doesn't mean we shouldn't make that tradeoff.

Yeah, there might be some impacts to junior engineers. But if it improves the efficiency of your more expensive senior devs, isn't it worth it?

And just because your team has a problem with onboarding and mentoring junior devs in a remote environment doesn't mean A) Everyone has the same problem, B) you can't fix that problem yourself. Self improvement is the name of the game here anyway