I don't think it's being called out as a bad idea. It seems to me that the author sees it as a feature to provide this in the tool and protocol, and is mention

I don't think it's being called out as a bad idea. It seems to me that the author sees it as a feature to provide this in the tool and protocol, and is mentioning it. Whether it really is a good idea remains to be seen. [edited when I re-read the blurb and realized that oxy does more than ssh in this case]