Glad you can appreciate it.
I just find it rich when anyone on a forum tries to judge the toughness of NFL players based off a quote.
And then just to a more evidence-based point: there is no conclusive evidence that less padded practice has led to more injuries, but there is an overwhelming concern with how players are conditioned early in their training (from grade school and up) of over-focusing on one sport and wearing out the muscles doing so.
So, while the point of: catastrophic injuries were more common in the 80s is true, players are now having more injuries overall, due to many of the reasons you've balked at. More games, less off-season (especially for teams like the Ravens, who consistently are in the running). In a game where a mere 24 hours is a world of difference (many players talk about how their recovery in the week really only feels good by that next Sunday), let alone a Sunday-Thursday week, etc., I DO think there is merit in organizations looking at how to get the most out of practices while minimizing the toll on their players body, especially late into the season.
I respect Harbaugh, I don't think it's just him, I think this is something the NFL is going to have to adapt to.
Sorry if that's too many words, I suck at making it short. I do think, to be fair, people gave less of a **** about their bodies back then, and maybes that's toughness to some. However the freak athletes are a dime a dozen nowadays and you're getting mauled over and over, at much higher reps, with much less recovery time, and the "scienc-y" advancement stuff isn't as much of a wash as your other post suggests.
Goddamn man, I ramble.