You seem to be saying that MERS's interpretation should be correct, that MERS's database should be the law of the land and investors should be able to buy and sell the title to mortgages without states and counties being involved.
The current system has homeowners getting windfalls because MERS screwed up, and I suspect that screw-ups in your version would have the opposite effect, where homeowners get robbed by computers and nobody can be held accountable.
So that seems bad. And what would the benefit be? Sure, it would make mortgage-backed securities more efficient, but -- why is that good?