I personally like the lesser power. Prior to SB's release, I could just wade in and pretty much do whatever I wanted after a few flashes and a circle of scorn. Heck, I even tried an experiment once with just doing NOTHING after a few seconds of aggro accumulation and I never once lost threat. The only consideration was making sure I didn't take too much damage on a big pull. Now, the occasional loss of threat gives me something to do besides my rotation and defensive abilities. It's a bit more dynamic and grants some challenge back to the role.

TL;DR the challenge excites me