Not to sound too cynical, but they probably didn't know if this M9 with Petrenko would happen or not, and they needed to generate some sales and excitement in the mean-time. Also, people have been clamoring for a complete Haitink B.P.O. cycle - a sentiment for which I simply do not share. Many of those same people probably don't care that there will never be a Hatink/B.P.O. M8 - having this M9 makes their dream one step closer to being complete.
I refuse to spend a dime on this until I can hear the Dudamel M3 and the Rattle M8 with Johan Botha.