The only lesson that $ony has learned about the relationship with their customers this generation is that they can treat them with complete disdain in every possible way, and they will continue to be loyal fanboys.
Free PSN plus is not an apology, it is a marketing tactic. They were probably planning on offering a free trial just to get money from people who forget to unsubscribe (or actually liked it?) anyways. Many services that offer more than just a few pathetic discounts have a 30 day trial all the time (Netflix for example).