This actually won't affect most of as here, the majority of whom I assume are P, *S or higher.
What I do wonder if what effect this will have on check-in lineups. Espcially for the very infrequent flyers who won't use OLCI or the Kiosks, and who at least in the early days may not know about this change (and who I should mention always seem to be the ones with 4 bags each weighing 70kg). I bet you there will be lots of arguing and even the time to process payment (find CC or $, process it, etc) will eat up a lot of time in line.;
AClover