They taught it in the 70's too. My LL coach was the dad of a friend, he'd played in the Indians system in the 60's, as a catcher. He spent considerable time working with the catchers on how not to stab at the ball, not to "throw" your mitt at the ball but make smooth movements to it, how to try to always catch it with the fingers up and how, if you had to move your glove, to try to move it from out of the strike zone into the strike zone not the other way around. Now, those may not all be considered right or wrong now, but it's not like pitch framing is a new thing. They thought it helped 40-50 years ago. Now, is it's value overblown? Likely, but it's not nothing. I'd consider it more of a tie breaker between two otherwise similar players than something to put at the forefront of rating a catcher. If Castillo and Ross were otherwise similar but Ross was a better framer, and their cost was similar, I'd take Ross. But there's no way I'd buy into a multiple win advantage for Ross just on framing.