Scott, that blog post has been discussed before and it is far more relevant to the big production houses around the uk and USA who have huge overheads and rely solely on post production work from film and tv. Also, that list includes some pretty established trades and is pretty subjective.
As for your analogy, I would never advise someone close to me on business. But if I had my arm forced on your question I would tell them not to be silly. Because, your scenario shows no immediate income, no guaranteed income, no experience and no skillset. If someone I loved had a good case for dumping life savings and their house on a business that had potential for growth I would offer them my money so I could make a profit. Let’s not get misty eyed about video production, we are running a business that has to make profit. Let’s twist that scenario back to you-if your loved one said they were going to dump all their money and house and take out loans to run a new plumbing business, but had no experience, no skills, no clients and no connections, what would you say?
Our industry has changed. You now can offer more, for less.