My observation after a few days on my Hisense Google TV:
• Exiting the app seems to work better when accessing a program from the home page. Previously I had to hit the back arrow until the Featured program was highlighted, then navigate up to the main menu before I could hit the back arrow to exit Tablo. Now I can just keep hitting the back arrow until the exit prompt comes up 
• I feel like the Tablo splash graphic greets me more often when I launch the app. I’m not seeing errors on launch as often, as a result. Perhaps this is the new app version, better user behavior in my house when exiting the app, or a combination of both.