Resin printers are frankly, a pain in the ***.
not if you have a nice one like a FormLabs3 that auto-fills the tank and has resin cartridges. I rarely have an issue with my prints.
also resin prints are isotropic meaning strong in all directions. FDM or rather tube printers print objects that are inherently weak in the Z-direction. Warping rarely occurs if your print is properly designed. Certain resins used by dentists is not toxic.
Aren't resin printers old technology? My brother did his aerospace engineering master's thesis using resin printing technology in 1996.