Probably. Samsung hired thousands of c++ developers in a particular low-cost country to build Tizen. You can't really hire that many quality developers that quickly, and it showed.
It kinda is shitty, though. Do remember that it was built as a replacement for Android on smartphones, then when that, in a 100% expected way completely failed, was was relegated to the TV and smartwatch platforms where general requirements are perhaps 5x less.
Those two platforms probably only use the best 20-30% core functionality of what was built. And they're still second tier...