sometimes you’re just a better dps than support. If I’ve got gold medals for damage, eliminations, and objective time, switching to support isn’t ideal for the team.

by virtue of that reasoning, rocket jumping should not exist...

Yeah, but the PC experience is also an unparalleled playground for modders and other hobbyists who add an incredible amount of content to any game, and often maintain servers of their own long after official ones have been shut down.