Yeah I wouldn't lose any sleep over it if it was my pistol, but the initials are what make me snicker, kinda odd. But from both a functional and aesthetic standpoint, the gun is still good to go, and it sounds to me like you got your money's worth.
I have never used any adhesives with sights, I always rely on the set screw. There should be a good friction fit, but even when the friction fit isn't as tight as you like it, proper tightening of the set screw will lock the sight in there real good. If one were wanting to take it a touch further, you could mill a small dimple where the set screw goes into the dovetail to give it a mechanical lock into place.
