@WinOr10PushUps You are missing the point.
See, take this position black pawns at a7 b7 c7, white pawns at a5 b5 c5.
You start by pushing b6, he has to capture, say with a7xb6, then you push c6. he has to capture with b7xc6 then your a pawn rolls.
If he captured with c7xb6, you push a6 and c5 rolls.
The issue is that there is a king behind ready to intercept. and now he has 2 pawns advantage. So you cant promote.
If you get your king into position before, behind his pawns, you dont have to advance any, just blockade them and capture them with your king..
In order to that example that i gave you work, your pawns need to be at least 1 step closer to promoting and promote with a check, or 2 steps closer, so you can promote and have time to go back and stop his own promotion, else it really doesnt matter if you can get a passed pawn, cause the opponent gets its own and probably have time to defend the other one.
You only do that when the kings are on the opposite side of the board.
If the king is closer to the corner in question, it doesnt matter what kind of shape you have on your formation, most likely you wont be able to either create a passed pawn or capture the base of the structure. You wont have opposition.
You might need a particular pawn shape if you were on the center of the board, but on the corner, like that, ill be a draw unless the opponent blunders, and its quite hard to blunder there since you cant win opposition if the king cant physically go to z1,z2-a0-b0, there its out of bounds.