So General Goldfein already believes we have less than half the training we need, and you want to shorten the FTU by another 10%? I don't see any possible way that can go wrong.
Also, flying that third go requires enough manpower that you can make it happen and still maintain crew rest, brief and debrief, provide a SOF, provide a Top 3, and do academics and sims. Not to mention the MX costs.