This could be true. Perhaps the Deathclaws are just respawning close enough to those areas that they're a constant nuisance? Dunno, but I am hoping this is more than just an unfortunate "Killed the enemy too close the area and now it's a threat there whenever it respawns" kind of thing.
I dont think thats whats happening because as i've said before the death claws are smaller and a slightly different color, and lol they dont die unless and NPC or Companion kill them for me. I just waste bullet after bullet of them and they dont die. I mean its not that big of a deal, i was just curious to see if anyone else had this happening to them.