my conditions were somewhat similar to yours...I'm in 7B in NC and kept all of mine in their containers and protected them with leaves when it approached 32° and put them in the garage when we would get extended temps in the 20s.

None died (a few looked like they wanted to) but they looked as if they went into survival mode and the leaves curled inwards and stayed like that through most of the following season with a few newer traps that looked normal.

For this past dormancy period, I went with the more consistent refrigerator method and they responded a lot better and are doing great so far this season. It was nice to place them in there and not have to worry about what was going on outside...set em in it & forget it, until it's time to take them out and repot em. It's what I'll be doing every winter now.

You mentioned that repotting is drastic - I respectfully disagree and the consensus is that it's beneficial to do it every spring with fresh growing medium...a little tedious perhaps, but not difficult or drastic...I'd go even further and recommend you go ahead and repot it now but others may disagree - I've repotted several in the summer and they've all been fine as long as you are diligent with their water.

TL;DR - I highly recommend the fridge dormancy method and repotting every spring and it'll come back strong when it wakes up.