That's a bit biased. "Easy 2/18" insists that "Invite friends..." is the default button and should be blue, while "Skip" button should be white which makes look like it's not a button at all, so a user does not realize that he can skip the useless spamming "Invite" step. I think it's a bad design.
Yeah, that one was blatantly biased. It is a dark pattern trying to dissuade user from clicking that button - which honestly is just a bad design. Some of them are genuenly good - the alignment ones for example, but others are open to interpretation where you have to pick the most 'in' option.
They key is consistency. Please leave your morals at the door.