This article does an outstanding job of outlining the importance of putting on weight and how it helps not only with sustaining blows, but helping in performance, making a guy miss, and helping make difficult throws. Goff's comments are right on and the comments from McVay really hit home
"It's always important to be able to sustain some of the hits," Rams coach Sean McVay said. "You still want to make sure that you're fluid and flexible. I think that weight, when you're thinking about some of the throws that you have to make in the face of a pass rush, and where you have to absorb those hits -- I think it just allows you to be a little bit sturdier. I think you want to put it on the right way."
It will be important for Goff to continue to add weight. He really does look like Matt Ryan and Ryan is a perfect example of a lanky QB who was able to add weight.
Marc Bulger was not an example of that IMO