I guess we'll have a free press as long as the tabloids are out there digging. I doubt if they're in financial trouble like the rest of the newspapers.
1) Nordegren couldn't stand it any more and leaked the info.
And, on a tinfoily note...
2) Say you're a CEO whose company's losing money. The board's on your butt and is making your life a misery. You need to cut costs STAT, and there's one biggie you could cut immediately: A star you've got on an endorsement contract that's worth millions. The guy is spiraling outta control and you just know he's gonna be radioactive soon anyway. So, you leak what you've been helping to spike all these years knowing that the public furor will give you the perfect excuse to trigger the morals clause in the contract. Bye bye degenerate superstar and high cost contract. Hello instant savings.
FWIW, as tinfoily as it sounds, that latter theory could explain a lot.