Honestly, with all of these "quality" HD channels that are supposed to launch by the end of the year, the days of Voom's niche are just about over. They see the writing on the wall, and I'm sure Charlie see it too. He likely just had to sign them up to get 61.5 Rainbow1 (which was a good move).
But if he can drop them, then that makes room for 15 other HD channels, and with Weather, USA, CNN, etc... on the horizon, that makes sense. Besides the Voom channels had a role back in 2003 when there were only about 10 other HD channels out there. But with the number of "other" HD channels about to surge, the Voom Channels are no longer as valuable as they once were.
Honestly, that sounds like your opinion and not fact. As a former Voom DBS subscriber, I find it really annoying when people say that the Voom channels are low quality and are just useless fillers taking up space that future stations could use. Just because you don't watch them doesn't mean they are value-less to everyone else. Every Voom channel has content that will appeal to some people. For me, these stations are the reason I switched to Dish and are the reason I have not switched back to cable.