Why would I choose Resilient Alpha?

I was looking at what I can get for Resilient Alpha and I can't see very many situations where this would be the power to choose. Is there something I am not seeing? If I am looking for more resistance for my toon, this (if I am seeing it right) ability does give me 7% more than cardiac (nothing to sneeze at), but the other powers I get with cardiac seem to help so much more. Cardiac helps with end problems, while Resilient deals with taunt, but I don't ever seem to have a problem with not enough taunt. Radial Paragon could help with tohit debuffs, which I assume would be good for Willpower, but then I would be down to the 20% resistance that I get from cardiac.

Is someone can steer me into seeing this more clearly, feel free.

Resilent Alpha could potentially help with Will Power tankers who have a pretty weak taunt aura. The +resist would be nice for WP tankers who are already at or near the defense soft cap. Outside of that I can see any real uses.

Note they are swapping the Taunt and To-Hit in an upcoming patch IIRC (Currently Taunt is core, yes?) to make it more viable for others.

I plan to use Resilient in my Elec/Elec Brute. That extra 7% to resistance looks tasty, and she doesn't really need the endurance buff from Cardiac since she already has two powers in Elec Armor that manage endurance (three if you count Power Surge).