Thanks. I do occasionally get blasted with my own frag, but that would mostly be when trying to do something flashy for entertainment value.

: That chunk of the map is really interesting, in that it feels very
: under-utilized under normal circumstances

Yes, good point. The trough is a unique feature and makes a fantastic battle zone, but in standard play you'd probably only ever go in there to kill the two passage Elites for a few seconds of fun. And perhaps most players don't even bother with that, since there's no actual need to trigger them.