Author here. Great thoughts and addendum! I absolutely agree with your points. Thanks for sharing. I am hoping to only make the website better over time and add more resources. Feel free to get in touch with me through the site.
Have a look at making your site work without JavaScript support or offer a <noscript> warning why you need JavaScript (and why the page has to be blank without it). Also look at adding fall-backs to your font stacks. If you use Ghostery then Typekit is blocked, which will render all fonts in the default browser font.
As for the content: Coca Cola and a 40$ soccer ball as an example of good design and cheap wheelchairs or prosthetic arms as an example of bad design confuses me. I won't form an opinion on this, as the only thing I could be sure of is that such an opinion would be misinformed, but that was the moment you "lost" me.
I do think this debate is welcome. I would probably be on the side of those that say: intent alone does not make a great product, but the intent is still good. I'd rather see 10 more people try and fail to bring mediocre products to the 3rd world, then to see 10 more sites like this and nothing really happening.
If your vision is so counter to the market, that for it to work it has to change the entrepreneurial mindsets of a majority, then that vision is not too compatible. Is that because the vision is not pragmatic and realistic, or are these entrepreneurs really all building shitty products? It seems like it willingly creates a chicken and egg problem where the rest does not even see one.