This is actually a pretty good writeup. I think the best teams are more aggressive than what the author suggests.

The only thing you don't need to do is swear and the only thing you need to really add is a better solution:

"That's a terrible terrible idea! It's bad design because of x, y and z. Instead, why don't we do a? We can write tests for it and we'll need to refactor the module, but it's a clean solution. We could also do b as a quick fix. I mean if we have to, we can do c, but I think we should try to do a."

You should not be afraid to say ideas are terrible. On a corporate team, just don't swear (in slack, you can in person. It's about professionalism) but if you say something is terrible, say why, defend your argument and be prepared to offer a better solution.