Then rename it Best Quarterback. Valuable should leave room for an extraordinary season at another position.
A receiver can dominate his position and still be less valuable than an excellent quarterback having a less spectacular season. That is not disrespect; it is the geometry of the sport. Quarterbacks touch every offensive snap and shape protection, coverage, and play selection. If people want a best-player award, create one. But an MVP discussion that ignores positional leverage is just ranking highlights with a trophy attached.
