'Pampering' - now there's a word that clearly implies treating them like babies.
I get a lot of this old school stuff, I really do. But the high frequency of injuries to pitchers is a fact. Torn ligaments are a fact. It's understandable that teams would like to avoid them.
And nobody really knows exactly why the incidence of TJ surgery-inducing injuries is so high now. There are a lot of theories, as with many things.