When I bought my spider I didn't fully understand the spider wobble as no one mentioned it to me (pet store) and was certainly freaked out when he corked screwed at the first feeding. People will do as they like but if they choose to breed spider morphs I think any buyers of offspring should be fully informed of the potential for serious wobble as it could lead to the animal being re-homed by an inexperienced or first time keeper.
I love my spider guy, he's settled a lot and doesn't corkscrew at feeding anymore, I'll likely never get rid of him, but I don't think I'll ever purchase another spider morph.
To each his own, be an informed buyer