Perhaps I am incorrect, I thought the participation in the ceremony was as part of the team conducting it. Saluting and the PoA is as an attendant or spectator. Easy enough to do at a troop meeting instead of having the flags already set up on poles, have scouts present them by walking them to their position in a ceremonial procession. Perhaps this should be the standard operating procedure. Where else will they practice this prior to the troop being asked to perform this by another organization?
On campouts, it is easy enough to rig a flagpole and do the raising/lowering as part of the standard program.
In general most rank requirements should be able to be accomplished via participation in the standard program. If the program does not have it, then that is an area of growth for the program. Also if it is part of the standard program, the "one and done" complaints are moot.