Those are code, which is great, but they're not the clickable demo store I was hoping to find (Shopify is traditionally great about providing clickable demo stores, so the lack of them here feels odd)
Your link doesn't work on mobile. Yes, I get that it's a dev site, but as Shopify is aware most users encounter most sites for the first time on their mobile device. I'm not the only person hitting this page on their phone wondering "I wonder what this looks like - is this interesting enough for me to remember for later?" With no demo page the odds that gets a yes are far lower than if there were a demo page.
Fair, we'll have demo links and examples to share in the future. The focus right now is to get hands-on developer feedback on ergonomics, API shape, etc.