I dont think so. After Blake broke up her and Mike Gentile, who was also in Blake, formed Hey Monday after recruiting a few other members, THEN they signed to Decaydance and Columbia.
I dont get the hate though. Because she was in a couple different bands when she was in high school? Who cares. A lot of people are in shitty local bands before they make it big. Hey Monday was going nowhere so she made a career decision that's probably going to pay off big for her.