Making something comparable with ext4 would probably take an autistic genius who dedicates their every waking moment to this project. Someone who eats, drinks and breathes numbers.

Other people can hope to make a fun little project that teaches them about file systems and storage hardware. Might not be a competitor to anything, but it doesn’t have to be. People like to tinker with all sorts of weird stuff, like installing doom on a toaster or something. The way I see it, this FS project is probably in that category.