I mean in SK you don't need to be lying to be sued and lose. Any company had a loss of revenue can sue and win.

So if I walk down the street and an idol hits me on the head with a rock and I post about it. Even if it's true, as long as the company loses money due to my statements they can sue and win. Mostly companies don't do this because private citizens don't have enough money to justify what it would do their reputation. There have been plenty of instances though of people successfully being sued for speaking the truth.

The lawsuit isn't about whether or not you lied. The lawsuit is about you causing revenue loss. As long as they can prove you directly hurt their revenue they are good to go.