If you actually stop and think about it...
Red ram is a different model number to black or blue or rgb, many times it's the exact same ram, just a different color.
Gskill has @ 3000 different model numbers just in the Trident-Z series. Add in the RipJaws, snipers, value, aries and the oddballs and you've got closer to 20,000 total individual models covering speeds, kits, colors, timings, rgb, sizes etc.
Then add all of Kingston models, Crucial, Patriot, Adata, Samsung, Toshiba, Amd, and everyone else and you've got a number closer to 300,000 individual model numbers, made from ram supplied by a handful of OEMs. Repeat after repeat testing of exactly the same ic's under different heatsinks. It would take a QVL 10,000 pages long and millions of man hours just to test all the ram on all the boards just Asus alone makes, and thats not going to happen. Ever. Asus would go bankrupt in a hurry.
QVL is nothing more than a few different kits from a few popular vendors, some owned, some donated, some prototype offered. All it says is a couple different vendors have shown that the claimed speeds of the mobo actually work.
QVL is Qualified Vendor List, not Qualified Ram List. Not Qualified as in Only these vendors work, but Qualified as in these Vendors did work, no guarantees on others.