Not sure Sugi - I'm old enough that wonderful things like that weren't around back when I caught. In my opinion things like that would help prevent an injury such as this. As for a current injury it could help alleviate some pain but I believe it will still hurt if he catches it wrong.
My sophomore year in college I was catching a guy throwing upper 80's with movement and his fastball tailed at the last second and I caught it wrong. It hurt a lot and I never really took time off to let it heal. I was always catching somebody at somepoint or another during offseason, spring and fall. It really took me about a year after I stopped playing to completely stop hurting.