Christ. Let get real here.
I don't care how long/steep/deflated the slide is. If it's a choice between burning to death in an alloy tube, and breaking both my legs/pelvis/back/skull, well, I'll die trying to get out thankyou. Hell, I'd step out of that thing even if there were NO SLIDE. I suspect put in a real evac situation, most people would do the same.
I'm sure airbus will keep trying until they get it certified.