I like the "minor action" version of the power just because of the proactive vs reactive nature of the decision point, although it's really just an "Inspiring Word" that removes the prone condition at that point, isn't it?
Yeah, I felt that removing the prone condition was the crux of the power, really. It fits the whole, "What do you think this is? A hotel? GET UP SOLDIER!" kinda attitude.
I guess it could be a 2nd-level utility, but in my early-morning mindset, I thought it was too powerful. In hindsight, it probably sits a bit better as a 2nd-level utility.
Maybe make it a free action as a 2nd-level utility power and give it the +1d6 of inspiring word?