It's probably because you play Sub-Zero. He's one of the most generic characters to watch because he has very little combo variety outside of what's most efficient. Every now and then you'll get a Sub that will B+2 reset/enhanced ground freeze, but that's about as "complicated" as Sub-Zero gets. His general strategies are all the same at high levels - hide behind clone, dash in and clone, trap in corner with clone, trade projectiles with ice beam... that's about it. People say every Sub plays the same because Sub is the king of zzz.