re·cede
go or move back or further away from a previous position.
"will burning sulfur cause pm to receed? "
No.
From my limited experience sulfur burns do kill the PM. I did a burn and saw the sulfur particles "stick" to the PM and presumably kill it by turning into acid. PM residue showed on the leaves in form of death to the plant leaves. That is, wherever PM lived was now ruined by sulfur burn.
To me the disadvantage to sulfur burning is measuring dosage. As example, burn X milligrams until Y PPM are reached and hold for Z time. I really over did it and damaged the plants to the point of disaster.
On the other hand I read such praise for the burns that I did try it.
Good luck.