Because Drift sounds like he has the potential to be kinda lame. Plus IDW seems to be insulated from the criticism AHM and McCarthy have received outside of their own forums.

People pretty much would have preferred it if AHM was released as an alternate universe tale as originally planned. Even if people weren't thrilled with the then-current story, they like it less when something they've been putting time and money into for the past 2 and a half years is jerked around by the publisher in a haphazard and slipshod fashion.

Not only is that disrespectful to your employees, that is disrespectful to your loyal customers. Yeah, I don't care if comic publishers do this all the time.