I think it is more the perception that this is a poorly managed release.
No doubt that the actual product looks good. The issue is that a tiered roll out of upgrade codes is somewhat strange. Can’t Pixologic acquire extra bandwidth during the release? Additional mirrored sites and more resources during this time will have created a lot of goodwill with their customer base.
As it stands now, this week of waiting is a very negative experience and could have been avoided.