10mm Auto: (Un)fairly ignored?

[ManiacallyChallenged]

I've been obsessed with 10mm since Rainbow Six Rogue Spear had MP5's in 10mm.
I like the sound of the round too, but mostly just because it's unique.
Maybe the problem is that the round tries to fill a hole that doesn't exist, like the .45 GAP(as mentioned on the 9v45 thread).