Its what the 1911 should have been.
Nah. Like the BHP, the 1911 was designed for a military entity, and...like any contracted design...has the features that the people writing the checks specifically requested. If said feature was already in place, it was either given the green light or it was removed. When you've got an organization standin' there with suitcases full of money and a contract is on the table for a half-million units...you pretty much give'em what they want.
The High Power didn't get a grip safety because it wasn't specified. If it had been, it would be wearing one today. If the contracting party had asked for a rear sight that looked like rabbit ears, instead of the Browning High Power, the gun would probably be known as "The Browning Bunny."