It's not at all a fish out of water, race against time scenario. I used to think that too, and I would rush my way through work that needed time and attention to detail to complete. just mist the bare, exposed roots every 5-10 minutes as you're working, and take steps to provide good aftercare.
When I root-grafted
this Japanese maple in a workshop, the tree was bare-rooted for 4 hours while we did the work. If a tree needs to be repotted and the soil is wet, I'll unpotted it and set it out for a few hours or overnight to dry out a bit.
I'd say it's even more important to take photos at repotting so you remember what you did from one repotting to the next.
It's easy to forget what you did 2-5 years ago, when it's buried out of sight 99.9% of the time.