The point some of the Badger faithful make is that transfer eligibility is ALWAYS decided at the NCAA level - NOT at the university level. They suggest that now that Burwick is enrolled at another school, not on a UW scholarship, etc., that his availability for the Huskers is strictly an NCAA thing; while the prior school might be able to sign-off on a letter suggesting "go with my blessing," it really isn't a binding constraint with regard to transfer eligibility but rather, the NCAA has the final say...and that's what's holding things up.
Personally, I don't know enough about these things to know for sure - anybody else have some better insight as to the actual dynamics?