Telstra has been considering 'reviewing' their sponsorship pretty much every couoco of years for the past two decades.
It's certainly not the first time there has been whispers and it won't be the last. Naturally they will be wanting to show in some way that they are unhappy and don't condone what the players are doing, but it doesn't mean anything more than just presenting that image.
Telstra know fully well that if they left that there are competitors who would pick up the Digital Rights, so even if they were grumpy about it, they would be reluctant to give their competition a leg up.