(EDIT: as of May 6 Sony appears to have reversed course on the PSN link reuqirement)
I'll be giving Sony until Tuesday to announce a change of course as probably management doesn't want to do anything until Monday at least. Yes it's their fault for announcing shitty news right before a weekend, so anyone who wants a refund should request one.
It really sucks that Sony has to come in and ruin what would have been a shining example of how to run a live service game.