I had the same issue with my Roku and the HE games. It showed them on the viewing schedule, but when I clicked and clicked and clicked on them it was unavailable. I said **** it and watched on my phone.
What also got me, is they showed only some of the NCHC playoff games. I wanted to watch UMD vs Omaha and WMU vs CC. The first game of UMD was available, but not the second game. For WMU, the second game was available, but not the first of third. Whatever, I guess some hockey is better than no hockey at all.
For $30/month the Roku and phone app should be a lot better. I should be able to get a list view of the hockey schedule, one click on the game I want to watch, and be taken to that game. I should not have to pick what day's live feed of the weekend series I want to watch. (If it's Friday's live stream why would I want to attempt to live stream Saturday's game? Why have two separate options?)
Flo is better than stretch, but that isn't saying much.