Well, if he was using Leftovers. I wasn't thinking about the Sash, but that's really not as good/consistent as the Sub/leftovers one.
128 is bad because people just randomly throw 128 in both defensive stats to try to keep the stats "the same" (even though the base stats are different). For Ninjask especially, the defenses too are bad to try to increase. For walls such as dusknoir, you're better off deciding which defense you care more about, and putting more in that. Trying to split it evenly, on anything, is just not a good thing to try to do.
edit- this was in response to blizzard
Priory- once you're below 1/4 (unless they changed it to 1/3 for DP), they go up 1 stage (x1.5 or x50%)