It would seem immensely harsh to ping the non receiving peeler in this sort of scenario... or in fact both of them if the oppo steal the ball!!
Harsh alright, considering its not even an infringement!
[LAWS]LAW 19.12 DEFINITIONS
A lineout player ‘peels off’ when leaving the lineout to catch the ball knocked or
passed back by a team-mate.[/LAWS]
Nothing there or anywhere else in Law that says a peeler has to receive the ball.
[LAWS]Law 19 DEFINITIONS
Receiver. The receiver is the player
in position to catch the ball when lineout
players pass or knock the ball back from the lineout.[/LAWS]
So, does this mean the receiver HAS to receive the ball?
Other parts of the Law do actually specify that when players do something in anticipation of something happening, and that thing doesn't happen then they have committed an infringement, e.g. the long throw scenarios...
"If a player runs forward/infield to take a long throw in, and the ball is not thrown beyond the 15-metre line, this player is offside and must be penalised."
LAW 19.12 contains no such restriction, so IMO, "decoy peeling" as a deception tactic is legal and acceptable in the same way that a dummy, a scissors move or using decoy runners (provided obstruction laws are not infringed) are also acceptable.
I am at all sure WHY they are leaving the lineout, but they do. Presumably it was conceived as a diversion.
I think that is exactly what it was. The tactic makes it look as if Red intend to run the ball right, putting just enough doubt in the minds of the Green forwards that they don't defend the touchline. Even if it initially doesn't work (if Green 2 is not fooled and tackles Red 2) the additional doubt has kept the Green tail-gunners infield for a second or two longer.
There's a lot to like about this simple move