>>>>>>Greater number of Platinum Elites...

I don't think it's that. In Jan/Feb of this year I was 12 for 12, all Friday/Sunday evening travel.

In March and now April (flying at the same times) I'm 7 for 11 (64%) and since the MSP-MSN flight I'm sitting in the WorldClub waiting for is P0F0 the percentage since the new Elite year started March 1st could go down into the 50's by this evening.

ALL of these non-upgraded flights never ran EUA, because they were already full of people with confirmed F seats (visible by looking at very full F seatmaps before EUA was scheduled to run); my late upgrades on earlier Jan/Feb happened on flights where F was actually empty and coach was heavaily sold. On my recent non-upgraded flights, plats have been frustratedly asking at the gate, and the 2 top plats would get the upgrades (except in the case of a JAX-MSP flight where the GA gave away the upgrades according to her whim). And this after 90+ % upgrades both as a Gold and previously as a Silver flying in the same relative timeframe over the past few years!

In my experience it is not that there are more plats around (after March 1st there should have been fewer, on my flights), but that now it hasn't been the traditional plat/gold/silver upgraders who are getting into F.