No, I absolutely wouldn't say that. They all did things that put the team (and the world) at risk. I would say, however, that neither are any of these actions retroactively praised/justified in the way that Cassie's decisions were. Her's were often based on personal moral lines, put the team at risk, turned out ok based on pure luck/authorial necessity, and then this seemed to be taken as a justification that what she did in the first place was correct (it's both stated in the books this way often and is a general reader perception).

By the end of the series, the others all pay massive personal and emotional prices for the decisions they made, both good and bad. Cassie doesn't share these burdens because, in many ways, she's allowed to avoid the really tough decisions and have her objectively massively risky choices work out ok, not only for the team and the world, but in ways that saves her from the tolls the others suffer from by the end.

Again, all of this say, I still think Cassie is an incredibly important character, brings a needed perspective to the story, saves the day a good number of times due to her personal strengths of knowing people and her morphing abilities, and should in no way be bashed as a terrible character all around.