I have always had a problem with rear lockup in emergency situations. There is such a high degree of weight shift to the front wheel, and lightening of the rear, that the slightest pressure on the rear usually results in a rear slide, no bueno. Throw in sand, fluid, rain, or any adverse road conditions(pretty common here) and you gonna slide.
Yea, I know, practice rear restraint, but at the moment of truth, most of us will stomp the rear and slide, and underbrake the front. For me,(riding for 45 years, albeit not an expert racer, and lazy when it comes to parking lot reinforcing practice) strong front and less rear braking power is safer. I may get roasted on that.
Jess, you should be able to lock up the rear, or with this bike, engage the ABS with pressure on the rear. You may need to bleed the rear, which on mine did not firm up the pedal until I went out and engaged the rear ABS a few times
Also, pardon me, but that photo of you is so distractingly good, I'm having a hard time focusing on the forum posts! I'm sure this is one area where there is general agreement. You go girl!