It would be a good idea to issue an advisory that the translation was done by a machine so that it would not be disseminated. You are right. Google Translate translations belong to Google. The advantage of the Portage tool is that it will be on a Canadian server. When it comes to government texts, it is completely reasonable to feel that the information should stay in the country. I was very much in favour of that. In fact, I am not opposed to Portage in principle, but I am opposed to its use. I do not want to come back to that.
On April 13th, 2016. See this statement in context.