The problem I have with this is the wording. The way it reads indicates that anyone who bought the game during, or after, May and registered for 90 days before June 30th will be eligible. It says "as of", which can also be used as,

"As of July 1st, the 90 day subscription option will no longer be available".

Furthermore, it says nothing about paying for the 90 days before July. The announcement only mentions registration. Last I checked, registration does not necessitate payment. Now I am not sure if they are changing their deadline, or what exactly is happening, but I will be reading through this thread to see if there is any more clarification. All-in-all, this might be very disappointing for some people.