Repotting new orchids --> dead roots

[Reeses]

Hi everyone,

So I have been operating under the assumption that it is better to repot a BBS orchid immediately (specifically phals) regardless of if it was in bloom in order to maximize survival of the plant in the long run. For example, I've gotten a few phals from Trader Joe's that had about 3x as much moss in the pot as they should have, and I could see the roots starting to rot.

I've been waiting to enjoy the blooms for a week or so, and then repotting, because I didn't want to let the roots rot further. But, I'm noticing that after repotting most of the roots die off anyway. Is this because i repot when they are not in active growth?

Just like to hear everyone's Should I wait to repot until they are actively growing, but risk losing the plant in the mean time?