I don't get it - looks like a very standard linear periodization "program" - it's not even a program, just loading parameters for the bench because there is nothing about accessories, secondary exercises, etc...just some descriptions. Nothing unorthodox there, as in, how is this any more idfferent than every other periodization schema? Maybe you were just really dedicated and everything was on point (diet / stress / sleep) for you to improve that much?
Regardless, that's a pretty solid progreess man - good for you! Keep at it.