Should I repot a mail-order phal in bloom?

[Mountaineer370]

Any of you who have read my posts know I'm a newbie, having only gotten my first orchid a couple years ago. I've read conflicting information on this topic. I've tried a search on the forum, but without reading hundreds of posts, I'm having a hard time finding an answer to this specific question. So please forgive me if this has been covered many times before!

I recently got brave and ordered my very first plant by mail. It's from a well-known and well-respected vendor who is a member of this board, and I am very happy with the experience so far. It is a Phal. Liu's Berry, which is a compact. It has two spikes, is in bloom, and has a few unopened buds, one of which has blasted, but I'm hopeful for the others. The plant itself looks very happy and healthy.

It is in a three-inch or so pot, the clear, very soft plastic, with just one drain hole at the bottom, which I am sure is not meant to be any type of permanent container. It appears to be in tight moss. It has quite a few air roots, but I am unable to see any of the roots in the pot.

I would like to get it into a better draining pot and enable it to get more air flow around the roots. Should I repot it now or wait until it's done blooming? I'm afraid the flowers could last a long time, and that it may be bad for the roots to leave it in its shipping pot for that long.

What do you guys typically do when you receive a plant in the mail like this?