personally I think it's okay to breed spiders but the fact is that they do wobble yes, and majority of the time the snakes will thrive. Of course it is up to you whether odr not to breed spiders. You just have to be prepared to either care for the really bad corkscrewers if they are eating or cull them if the wobble is too much for them to handle.
in my experience with the wobble it's not as bad as people make it out to be. The videos you find on youtube, etc. are generally extreme cases of the wobble. another thing i've noticed is that the wobble only really manifests itself when handling or feeding. The wobble also tends to sort of look like something of a balancing issue to me as well. When any of my spiders are on the ground or have a platform to support their head, the wobble virtually disappears. It's only when they have their heads off the ground does the wobble manifest itself. This is usually during feeding and handling as stated before.
As for the really bad wobblers, I think it's up to the breeder on whether or not to cull them or not. Like I said, majority of the time spiders will do fine and thrive and be more or less normal snakes except for a little quirk. (That's putting it lightly I suppose but I'm just going off experience.) My stance is that if it can eat without any assistance it is a perfectly fine snake to me. I haven't dealt with any extremely bad corkscrewers so maybe my opinion on whether or not to cull will change.
another thing of note is that the original male spider did have a wobble and was thriving in the wild but to what extent i have no idea but i'm 100% sure it was thriving.
My final note is that I wish people would stop bashing spiders as a whole just because they wobble. There are some that are really bad wobblers and some that are relatively normal or manageable. There are so many people who condemn others who breed spiders and it makes me sad because most of the time they haven't even done proper research on the gene's history and how they actually handle. I was on the boat on that you shouldn't breed spiders before but after handling one my friend had, I immediately acquired two for myself. All three spiders had/have wobbles of various degrees with some more than others but they weren't corkscrewing really hard nor were they struggling to eat. To restate, the videos you see on youtube or anywhere else for the matter that showcases a spider wobble is more than likely an extreme case of the wobble. They are stunning animals and the wobble is just a part of them and it just so happens to vary from animal to animal.
Sprry for the long post, I have more to say about the spider but I don't have concrete evidence to back them up. I am really passionate about spiders and wishing the bad stigma with them would at least die down partially when people learn about the history of the gene and how it actually manifests itself.
if there's anything I'm wrong about or missed feel free to let me know xD