Ok, I'll shoot them an email.
I kinda figured it was a mistake somewhere in the process, but figured I'd ask before I made a fuss.
I'm aware that PSA uses parts from various sources; side by side, the parts from various kits are usually quite a bit different. As long as they work, though, and are of reasonably good quality, no complaints here...I just wasn't sure if some manufacturers don't groove their pins, for whatever reason.