I used to play Q2 competitively, so I’m a little opinionated:
Not all games are eSports-ready, nor do they need to be.
Why: eSports need to be fair. Everyone has to start at the same place, and the majority, if not all of the performance has to come from player skill.
E.g: Imagine modern football where certain players running on the field could just randomly teleport or fly, but most can’t.
Class-based (hero arena, etc) shooters are inherently unequal in the same way, because that’s the point of classes (e.g: Heavy having more HP than Scout, Spy being able to cloak and so on).
If you’re about to make the argument that “TF2/OW/LOL/WTFBBQ” requires plenty of skill despite the abilities/imbalance: save it.
There’s an enormous gulf between what the audience and casual players + enthusiasts perceive as being inside of an eSport and what’s actually going on mechanically on the top-level.
Players optimize and engineer the fun out of a game.
eSports players/pros engineer the game out of the game.