Not ture, wish it were. I did a normal mode FP with all inquisitors and got a couple warrior drops.
Yes, like I said, sometimes the system screws up. Aside from your couple of warrior drops, everything else was for inquisitors, right? No agent or hunter drops? Most of the time, the drops will be class-appropriate. (And hey, at least for you guys, you could use the warrior gear for Khem.)