I mean have they actually posted anything more than this little corporate-speak deflection towards "complexity" and "stakeholders"?
I can def see why DO students aiming at competitive matches would be willing to tolerate Hell itself for six months for a numerical score.
But stepping back to look at it more broadly, you've got to imagine you're the typical US MD student that composes most of the testing population. As Joe Average, surely you might rather move the P/F change sooner than deal with 5+ months of dedicated culminating in the middle of a rotation. Maybe dedicated was a different experience for people who Zankied in preclinicals, but if my two month dedicated had turned into six months, I would've just left for a research year. You can't put thousands of US MD MS2s in that situation and think the majority will want to tough it out.