Not trying to pick apart your statement; but for a "crippled" OS, Android has a lot more stuff going for it - app-wise, development-wise and otherwise. Tizen is very open - SDK and source code are released and housed by the Linux Foundation. That's much more than MeeGo or Maemo offered.
The openness of Tizen on the licensing side though [ read more here ] is sorta up in the air - I'm personally impressed that I can use C++, Java, Adobe AIR, HTML5/jQuery and with a myriad of tools. Same for Android to be honest. Same for BlackBerry10 as well.
The UI is always important. Especially in a touch device. If you wanted just a terminal on a phone device, I'd suggest that you research how much of a minority you are in regards to marketing and buying power.
User interface and user experience can make or break an entire platform.