Nothing wrong with that of course. There are advantages to making your own things.
FanFicFare isn’t perfect either. For cloudflare it supports using FlareSolverr, but from what I heard it doesn’t always work well. Alternatively it can open the pages in your browser and grab the content from the browser cache.
I mainly like that it’s available as a Calibre plugin and that it supports just about any fan fiction site.
It’s a European Citizens’ Initiative. If it gets enough signatures, the European Commission has to discuss it and make a decision what to do about it.