Can't disagree with you enough here - no, it's not the reason they made the change, but the ability to sell more TODs is certainly a nice by-product of the decision.

Waitlisted upgrades don't magically clear when the now invisible R space opens? Oops, our (UA's) bad, sorry. And now CPU is a total crapshoot. Guess there are just more seats inside T-24 to sell at rock bottom advance F buy-up prices.