For tiny models like table-top miniatures, then, I guess quality is subjective, but I certainly think it is more than 10x better. The numbers do not nearly represent the difference in surface finish and detail.
When you get a workflow down and need quantity, though, resin is cool. Since it exposes the whole bed at once, I can, for example, pull 24 small prints off of a small printer every 1 hour. 2 days of production, and I have hundreds, using just one printer. With FDM, this particular part, FDM couldn't even make, but if it could, it'd be more like 15 minutes per part - would need a small print farm to keep up with literally one $150 printer.
I don't even have a space for the resin printer right now, though. It really needs a dedicated and well-thought-out station to keep the toxic stuff from ruining your day.
Buying a "premium" model with proper support, a service contract etc. is totally fine for a business investment. I would get lots of raised eyebrows if I were to buy a "hobby machine" for 1/5 of the price.
So... There's a place for machines like these.
The differences between hobby-grade and professional-grade printers are less obvious at this point, more about reliability and throughput than they are about fidelity at this point.