Unless the medium it is in is breaking down, I would leave it as is. Lots of roots, in and out of the pot, is normal and a good thing.
I personally, don't make a pot selection until after I have depotted the plant and removed all the old media and have a look at the roots. You generally want to pot the plant in a pot that allows the roots to fit in but not too much extra room. Too much extra room (over potting we call it), can lead to root rot.
Clear pots help make it easier to determine that the orchid is ready for water or not. Other than that, there is no reason not to use an opaque pot.
The roots do most of the breathing for the plant. And orchids do like a 15- 20 F temperature change from day highs to night time lows. It helps trigger many phals into bloom.