I'm 100% with you on this one. I feel like people who won't like mind wandering are heavy Type-A, control-oriented personalities, who have some external objective in mind, and are unsatisfied until that objective is completed.

I don't think I've ever experienced a negative mood due to mind wandering. If anything, negative moods for me result in more fixation on a problem, where my mind will not wander, and will just constantly come back to a single thing.