That belt can be invalidated when someone holds it hostage, much like the Lineal title. Unified titles are better IMO than both, but are nearly impossible to do.
LOL, alphabet crap is alphabet crap, think of WBA as cow crap; WBC, cat crap; The Ring, horse crap; lineal title, dog crap. They may all be different forms of crap, but still crap. There can be only one World Champion for each division, thus THE World Champion, and beauty of that is that you get to decide the formula to create who you think THE World Champion is.