Uh huh. Because an opposable thumb wasn't useful for other things, like, say, gripping tools and manipulating items found in nature ... Characteristics that would give their owners a huge step up on the evolutionary ladder.
The fact is, the human fist, unless it's in the "hands" of someone like Mike Tyson, isn't a particularly formidable weapon. Just about any animal can do major damage to a man. The only thing that saves us is our brains, and in the case of a lot of Democrats, that would have consigned them to the category of "snack."
This strikes me as a couple of irrelevant revisionists looking for a vehicle to justify their salaries ...
In addition, when primates strike with their "hands", it's also with the palm heel as the point of blunt contact, then once contact is made, the fingers to seize and tear. I refer to the unfortunate incidents where chimps seem to go for tearing people's faces off.
Psalm 144: "Blessed be the LORD my Strength; Who teaches my hands to war, and my fingers to fight."