Improper engine break in.

As I understand it the higher RPM at break-in is to get the cam saturated with oil... My engine builder did say to drive it kind of easy for 50 miles or so or like an hour of driving around town with the brake and oil in.. change the oil and let it have it..
I assume when you're changing the oil you're getting rid of any of the metal to metal breakin contaminants... Which I would hope there wouldn't be much....
Once that cycle is over I fail to see any reason the motor can't be taken to its potential...