I suggest that this is very weak evidence against the viability, either political, economic, or technical, of the Hyperloop. Any project that is obviously viable and useful has been done already; consequently, both useful and non-useful projects get the same amount of resistance of the form "Here's a problem I spent at least ten seconds thinking up, now you must take three days to counter it or I will pout. In public. Thus spoiling all your chances of ever getting your pet project accepted, hah!"