This is a very impressive technical achievement, and it's clear that a lot of work went into it.
Unfortunately, the entrepreneur in me continues that thought with "work that could have gone into finding customers instead". Now you have a system that could store "infinite" git repos, but how many customers?
TFA is literally marketing for them. HN is their target audience and a good way to capture that audience is to show them something technically interesting.
This feels like you're trying to ask rhetorically, but... Cloudflare hosted a program for startups to build things on Cloudflare Workers. This is a project that somebody built as part of that program, which they're now launching as a product.
Unfortunately, the entrepreneur in me continues that thought with "work that could have gone into finding customers instead". Now you have a system that could store "infinite" git repos, but how many customers?