This is a very good question and I think you should click on "Contact us" on their website and ask them. Helpmefind.com doesn't list two separate varieties of Falstaff, for instance, or Crown Princess Margareta and the others. It just lists the shrubs, although it does mention the climbing habit of the shrub in some cases. So they probably can't be sports, because sports would get a separate HMF listing.
I suspect they're selling just one variety of the rose, but they're listing it under shrubs and climbers and offering different pruning advice for each category.
