Channels I get is updated every now and then. They updated it about a year and a half ago I believe and had it pretty much working correctly at that time with the exception of the regional sports networks in the 600s. However since they they have added new channels, and evidenlty whoever adds the channels doesn't make sure that they work correctly with Channels I get, so those new channels tend to show up for everyone whether they subscribe to them or not.
Eventually DirecTV will update the feature again and the issue will go away for a little bit. Right now I think they are too busy with all the other stuff going on to worry about Channels I Get. The HD-GUI, HR34, RVU, NOMAD, DirecTV Anywhere, the mobile apps, are where they are concentrating right now and that probably makes the most sense until they are all up and running bug free.
As far as the latest firmware update that disables most of the remote commands when the guide or menu is on the screen I too hate it. I think it is a big mistake and I'm hoping enough people complain that DirecTV reconsider's it. I guess one of the big reasons they are making a lot of these changes is because of the new simplified remote they are coming out with for hotels and RVU TVs. Personally to me it would make more sense just to come up with a completely different IR codeset for that remote and have it work differently, rather than screwing up what millions of customers have been used to for years.