I agree and i would add that betting on a framework is a huge risk, relying on a library is far less dangerous. In the comparison there are some of both so the example are a bit misleading. For example to my knowledge knockout is far from stagnating, it does 1 thing only and it does it well, you can easy replace it incrementally in any application.

I completely agree with you on knockout. All versions are backwards compatible, just change the version number and you can enjoy the new features, I'm very happy I went with ko over angular (of course angular does more things so it's not a fair comparison, but things I do not need).