A$$holes. The process by which Mars lost its atmosphere has not stopped. It is still there. The gases that you plan to put on Mars’ surface will go the way of the previous gases. This should be obvious.
So, pump oxygen/carbon dioxide/nitrogen onto Mars’ surface. Watch it go into space. Wheeeee!
Enough of this crap. The reason why they want to put humans on another planet is to start civilization all over again, this time WITHOUT RELIGION (except for *slam, which will be given privileged status.)
You must not have read the article.