There weren't any dummies back then in 70's/80's bragging about h2h over older players either. No one cared about h2h. I see you mentioning Becker and Lendl.
The dynamic is totally different now. It's not the same, nowhere close. The fact that Fedovic and Fedal have played each other so many more times is proof how weak the field has been. They were always seeded so high that they had to beat everyone else to make it there and more times than not that's what happened. This is a slam race now between three guys and Fed is at a disadvantage being nearly 40 years old. Look at Nadal slowing down. Look at the ATP as a whole and look at these draws. Look at the older players and what's happening to them. Dropping like flies. The gatekeepers that could sneak a win off the Big 3. GONE