I'm very sorry to hear about your snake. Unfortunately this is why I don't like the Spider morph and I will never have one in my collection.

As far as whether you should breed her or not, I believe that is a decision you must make. It's common knowledge that most if not all Spiders and Spider morphs exhibit some degree of wobble, but people are breeding them all the time. Even though it is your decision, if you do decide to breed her hopefully you will make any of your customers aware of this condition before selling them.