Yeah its the 80 hour thing. They've all been released now. Appears this is just the pricing strategy that prices have tripled despite half the plane having not sold.

Would love to know their pricing algorithms, seems excessive given the space still available < 3 days before the flight. It's probably one of those destinations that people have no other options so they don't lose the flyer the flyer just moves their dates around. I wonder if they cross reference availability on other airlines..... of course they would!