It does seem that the author favors CanJS perhaps, but I thought his comparison was fair overall and he did note areas that CanJS falls short of Ember/Angular.

It does seem that the author favors CanJS perhaps, but I thought his comparison was fair overall and he did note areas that CanJS falls short of Ember/Angular. I would suspect that if he were to break down his experence with the various frameworks, you would find CanJS taking up a much larger share than the other frameworks.