SAM AoE is really TP intensive, even more so than any other physical dps. I can see some SAM deciding that it's not worth it which I don't agree with. The other side of that is that it is very easy for a SAM to run out of TP in an AoE fight especially without a brd/mch, so at some point a SAM will likely be forced to single target.

But a SAM who single targets with a full tp bar makes me sad.