You nailed it there... it's more of a function of the single-cam technology... you can always take your fingernail and work the separations back together if you'd like, or just leave it if it's just minor separation. Since you wrote "like most other brands do", I assume you know what "normal" looks like...

I shot Mathews for six years before my relationship with Bowtech began, and I experienced it on all those and have seen it on some Diamonds too. I've seen some highly respected custom stringmakers say the same thing as I did.