Some vasectomies are reversible. My urologist said the ones he did were not. I'm not sure if even *most* vasectomies are reversible.

As a general rule, we should consider most run of the mill vasectomies non-reversible. While it can sometimes be done, there are a lot of factors resulting in success. Additionally, they can be very expensive. Overall, I would say the proposed solution is either just a joke, or ignorant of the facts