In defense of heatblur, it was out of their control, the F4E was ready by that time. But ED always packages new releases with patches for the main sim and other products. The showstopper that prevented the release was on one of those and not with the F4E. So it was ED who pretty much took all the flak with the delay, similar to what PMDG experienced. I think its just the nature of the flightsim community.