J&P has become exceptionally unscrupulous in the last 6 or 7 years. It was a well-respected nursery for decades, but then it changed hands and, unfortunately, changed its practices as well. It's now notorious for giving older roses new names in the hope of appealing to customers that might already have the older roses but can be fooled into thinking they're getting something new. I have to admit that this trick worked on me a few times.
As for the other matter, the color of a rose can be affected by climate, soil, season, and other variants. My Caribbean Breeze is an own-root rose, so it can't have reverted to the rootstock. In any case, even if it had, the rootstock most likely would have been Dr. Huey, which produces dark red blooms.
