From my experience, no one ask for Tracer in any of my games. If the player has the skill to play at her fullest, then that player should be rewarded. In your level, she’s being picked more but that’s because dive is being run a lot especially with D.va and both synergies with Winston and zenyatta. In my level, I barely see anyone playing her on both teams and usually I’m the only one playing her because I have the skill to play her at my fullest. Most of the time my team runs death ball which is harder to play around with than dive unless you’re a good player. D.va is being picked a lot across all ranks because she can basically do almost everything better than other tanks. Tracer pickrate on the other hand isn’t high until you hit master/GM where player has the skill to play her and dive being run a lot. She’s stoppable if you at least try unless her team runs dive.
Finally someone at the proper rank to complain about Tracer being in every game. Yeah you are too good so you have to play with all Tracers. But literally everyone has to see D.Va in every game.