That's a silly statement.
So equipment trumps talent? You really think they had a technological edge in the '50s that allowed them to make "better" recordings?
I'm giving all of the credit to great musicians, and being accused of placing the "blame" on someone else. Great musicians make the engineer's job exceedingly simple. When a world-class musician shows up, you stick a mic in front of them and hit record. You play back what you just recorded, and it sounds incredible and moving. The brand of cable used on the mic doesn't change that.