I'd have more support for jersey tossing if I thought it had any hope of triggering positive change. It won't. The first couple of times, yes I do think it rattled their cages a bit. Now, I think they're just getting annoyed by it.
I expect if it continues, especially when it comes across as being more of a planned protest where the fan is literally waiting for them to lose with spare jersey in hand then a spontaneous display of emotion, the team will simply crack down on it and give out lifetime bans to the premises for anyone caught doing it. And that will be it.
Call it mafia, call it totalitarian or whatever you like. If they feel the jersey tossing is damaging the Oilers brand, they simply won't care.