That is a good question. According to the HDNet Movies page on the mydish site:Is Dish going to drop HDNet from the Top 200 package or is it permanent? I didn't have it until the HBO fiasco and it's still there on channel 130.
HDNet Movies (HDNMV) on DISH | MyDISH Station Details
HDNet Movies is only included in Dish Movie Pack, and Flex Pack. The free preview of HDNet Movies "officially" ended at the end of March, but it remains in free preview mode. So, it looks like we are in a holding pattern until Dish either catches their mistake, or decides what to do with HDNet Movies on a long-term basis.