They'd still be breaking EU law, would they not? If not, why not?👉 Let the small hobbyist distribute his hobby app directly from his website - problem solved! 👍
And if you think a hobbyist writing an app is going to have a more success selling it side loaded than in the App Store, you're insane. There is literally zero percent chance I install something from some developer I've never heard of's website, I would absolutely install an app that looks interesting from the App Store. I suspect most people would agree with me on that.