I just got an email from the old the coordinators at GSP, looks like they are now with BlueBay Grand Esmeralda, the email was a general message that if, due to the unfortunate events at the Princess, anyone would like to switch that they have capacity at BlueBay.
Misshh sounds like your agent doesn't want to go through the effort to try to switch you, although I do believe it is pretty difficult. I called our vacation provider and they refer all requests to switch out of GSP to a separate line which seems to ALWAYS give a busy tone.
I think mine is too close and group too large to switch, so I'm hoping all goes well and I have a good feeling it will. Will post a review here for sure.