The OP was critiquing the media reporting on the study not the study itself so I think your suggestion that the OP misunderstood the point of the study is off base.
The OP did not claim that the study sought to answer the questions posed. The article does answer the question 'Is it safe?' with the word 'Yes' so I believe you are actually in agreement with the OP and the OP did understand that it is really early to say that, hence the critique.