Slides in without friction, holds tightly once in, and wont seize. It's pretty much the golden standard around here.
So if you coat the loctite in grease, how does that extra layer between the loctite and the bolt help it increase friction with the female thread it gets threaded into? You've just lubricated the outside of the bolt , effectively nullifying the idea of the loctite as you've prevented it from forming a secure seal with the female thread. Loctite cures in the absence of air, hence you can put it on and thread it in while still wet, that should be more than enough temporary lubrication unless your threads are damaged.
Seizing primarily occurs from corrosion. If applied corrected, loctite will replace the job of grease and prevent any corrosion. While the bolt will now have more friction to remove, therefore requiring more force (a.k.a, loctite doing its job), the bolts shouldn't seize.
You don't ever put grease on brake or rotor bolts that are loctited, so why should you do it to any other bolts that are loctited?