Ruger single actions are a nightmare to reassemble.
No they're not.
Fiddly sometimes, especially if you don't pre-stage certain pins and parts properly during the process. But far from a nightmare.
Nightmare would be something like a Ross rifle, where the bolt can be assembled incorrectly, inserted into the action, and then it won't come out again.
Or some of the mid-century Savage/Stevens semi-autos that can suffer from malfunctions that require drilling out rivets, clearing the issue, then holding 367 parts in position while riveting everything back together.
Someone's first time inside of a Ruger SA revolver might be a frustrating learning experience, but the same can be said for many firearm designs.
Once you've dug around in their guts a couple of times, it's an easy job.
Problem of sending it in, is a) they might condemn the gun or b) they will convert it and then may not return the original parts. Always a crap shoot.
It isn't the recall that I would worry about, it's the other parts.
Ruger no longer stocks any "old style" parts - and, here, "old style" is anything pre-2005 or so. And disassembly and assembly are done on benches with bins of replacement parts available, where the parts with the best fit are the ones used for reassembly - whether original or new.
Anything that appears to be modified or show excessive wear will also be replaced, whether or not it actually needs to be. You may or may not get modified or custom parts back, if the repair tech recognizes what it is.
So even sending in a mid-'90s SBH for a minor repair can mean getting back a revolver with new style screws (matte finish), new style base pin (no collar, and shallower detent ring), new style grips, new style sights, etc., etc.
It has happened to many people, including myself. (Mine went in bone-stock.)