It all circles back to my original observation:
If you are in the left seat here with line holder seniority and 20 years or less on the clock left, it would be a challenge (not impossible or improbable) to offset in terms of seniority and pay.
If you’re in your late 20’s to 30’s in either seat here, you have to decide if this is what you like... no frills, easy flying, mostly decent people, and rational dispassionate discussions about uniform policy and APU usage.
If you are somewhere in between, do the math and put in your apps as necessary.
I still wouldn’t plan any part of my career at NK based off attrition rather than growth. (Edit: the SPAMEC website seniority calculator is a handy tool)