They should assume that hostile agencies (foreign *and* domestic) have tapped every last network link they own.
I am sure they knew all along. They were fine with it
Everyone is making noise now, because it became public and there is some concern over backlash from the users.
Let's be honest here. "They" in these cases are companies staffed by 1,000's of people. It seems highly implausible that all of those people, or even just all of the 100's that matter with respect to IT & infrastructure security, would have "known it all along," even less so been "fine with it." I find it more likely that the outrage is 99+% genuine, with 1% reserved for the dozen or fewer people who would have actually (or theoretically, if it's just a conspiracy theory) been in the know on something this big.