Actually it doesn't come with a "bleeding" disclaimer, it says some that because it's dyed leather some color "may rub off." Just like has happened over time with every leather item I've ever owned. The fact that other companies don't admit this upfront is no reflection on Apple.
I will have to disagree. I have been using and own many leather products for many years now, including messenger bags, belts, jackets, shoes, folio and journal covers and valets, and I have
never had any problem with any of them in terms of the dye/pigment rubbing off nor have any of these products ever arrived with a warning or disclaimer about non-fast dye.
Some of the pigments on the leather items have darkened over time through usage and exposure to sunlight, but that is a natural feature of the pigment and not considered a defect. A well-made leather product
does not have its colours rub off or bleed onto other surfaces, whether dry or wet, as the dye treatment can be baked fast into the hide to prevent exactly this. At the prices that leather manufacturers charge, a buyer should expect a certain level of quality.