At some point your Wordpress installation version will be so far ahead that it may break your unmaintained theme eventually. Which is why I avoid this route if I can. It's hard to make promises to clients based off something so fragile.
Well, you have just built a custom theme to support the data from Netlify. I guess you could just as well have built a custom theme for Wordpress to avoid being stuck with an unsupported theme.
The difference is for my use case, Netflfy isn't a full CMS per se, the theme I built is for Jekyll which runs on top of netlify. It's just compiled static HTML files. There's nothing you can hack.
If you're on WP and you forget about your website for say a year, WP version would be way high compared to the unmaintained theme that was built for an older version which would eventually break your site.
