I'm pretty much 100% spoiled but don't really regret it to be honest. To me it's the gameplay that matters the most. For example, I knew the end of The Elder Scrolls Oblivion the moment I had started the game, but it was the journey that mattered and I cashed in hundreds of hours in it still.
Although I gotta admit that MK has probably the best and most developped storyline for a fighting game and I had great fun watching streams with it. In the end I'll end up spending hundreds of hours playing VS mode so it won't matter.