When MK11 was first shown there was a small clash between older and newer fans, and it was rather a dumb one. This is coming from a guy that played the original as a child when it released and remembered when MK11 almost killed gaming and was basically responsible for the creation of the ESRB when parents freaked over the blood that looked like spray paint. That clash was over the music and it not being the original music, which is now in the official launch trailer.
Seeing as how the story is about the past and present meet the music thing makes sense, and it really makes sense they didn’t suddenly just go back to the original music with the first trailer. While I am happy to see it back, maybe this will finally make some of them stop complaining about it. Best wishes and may the gaming gods bring you glory.