You have a point, HOWEVER, for some of us who live in cities like SF, NYC, Toronto and others; tiny houses might be a good solution - even if it's a temporary one. I live in Toronto, where the average house costs $1,000,000 CAD. I know some folks who invested $50,000 into building a tiny home, and they are saving a ton of money while living within the city border or in the suburbs. Sure, it's not enough for more than 2 people, and having kids there isn't a great idea. Having that said, it's an excellent way to avoid paying $2,000 monthly in rent for a tiny condo that won't be much bigger than a tiny house. In fact, some condos in Toronto DO look like tiny homes.
If you live in a small town somewhere in the States, where you can buy a decent 3-bedroom house for $50-60k - good for you! I'm actually considering investing in real estate in the States. But for some of us, tiny homes and other alternative types of housing are the best bet to avoid draconian rent prices and unreasonable housing costs.
I like your article though.