There are lots of good reasons for a re-alignment. While trying to avoid turning this into the PRes roles and missions thread, I have always thought that it would be possible to re-align the structure while keeping the hat badges and traditions, but when every change initiative starts with the assumption that no units will be amalgamated or zero manned, it is hard to move forward.
I certainly think such a structure change would take some pressure off, but I think that the "shop floor" benefit would be limited because the people who are being squeezed up the chain aren't suited to stay at the lower levels anyway. For the most part we are still talking about officers and senior NCMs with 20+ years of service over the age of 40. If they were in the RegF, those people wouldn't be directly supporting IT or commanding platoons in CT either. Absent a BTL, we have a structural barrier preventing us from filling our establishment positions with trained, effective pers. When you couple that with significant training barriers (at all levels), it is not a recipe for success. Overall, and to your point in a round about way, I think that there is a general lack of focused institutional effort in keeping the bottom half of the pyramid (Ptes, MCpls, and Lts) healthy.
Part of the issue (even for the university student officer target audience) is that the RegF courses have also become less accessible over time due to sequencing issues, and growing course lengths. For example, in the manner in which the RESO system was structured when I went through, it used to be possible for PRes officers to complete basic officer training and what was then phase 2 in the same summer. However, when basic officer training was downloaded to the CBGs, that path was lost because no single CBG would have the critical mass to run a tailored course just for the officers. Little changes like that accumulate over time to put us into the situation we are in today.