I laughed when I read this but then I thought more and... wouldn't that be fun? Like, if it's their hobby and they're good at it, why would the date be bad?
Gardeners like their plants to grow big and healthy. Fishkeepers obsess over the health of their tanks. Musicians want to play more challenging music with better bandmates for bigger audiences on higher profile stages.
So if you were on the receiving end of a date orchestrated by a dating hobbyist, it'd be fun, probably unusual, definitely well organized. There are worse things to experience while dating. And, just maybe, you make a connection and form a relationship. But even the base case isn't _bad_ per se.
I have never heard that definition of "hobbyist" before. I don't see how it's even remotely related to what I wrote. But whatever. Get some rest, maybe tomorrow will be a better day for you.