I gotcha. Probably poor wording on my part. The not so short answer is I have young kids and our last trip was chaotic trying to do the hookup and cleanup and 50 other things for prep and put away. We're new at this and don't want to make a costly mistake and I almost did. To release the W/D bars tension I have to jack the truck/tongue up to then unhook the bars prior to lowering to release the hitch ball. I started jacking the hitch up before stopping realizing my stabilizers were still down and if I lifted the tongue up 6+" I might be crushing the rear stabilizers. So while I avoided that problem it was close and a good reminder absolutely everything has a correct order it needs to be done in.
Add in that my hookup/packup time was every bit of 50 minutes while my kids were getting anxious in front of a long drive and it made me think, why bother unhooking at all when I don't need to go anywhere. Eliminate a portion of the trouble. That's what led me here to find out if staying hooked causes other issues I'm too new to realize.