The OP links a document from former astronaut Charles Camarda, who NASA explicitly invited in to check their work, and who observed the press conference the Ars article comes from. He addresses every point in it, including that one. Just because an article is contrary to a strident opinion doesn't make it 'balanced'. It matters whether the actual facts are true or not.

https://docs.google.com/document/d/1ddi792xdfNXcBwF8qpDUxmZz...

This report from astronaut Camarda is indeed a bomb. Scaring.