Sorry but that's super obnoxious. No one in their right mind would use the verb "optimize" in this context.
Feel free to downvote, but sometimes you need to call people on their bs.
Unfortunately, I agree that it´s a poor thing to say in a presentation, as it requires people to actually know the game to understand why that would be good. People who don´t play might just think "what do I care that he's good at a game?"
Edit: Actually I think optimize is appropriate in that context too. To be that good, you have to min/max every game mechanic you can.
Rather they are great because they subconsciously pick up on minute details to learn from in every match they watch and play. Ask a top player why they did some maneuver, and you'll often get an answer like: "Because it's good". There really hasn't been that much system 2 thought put into it.
Being great at a video game is mostly about cultivating an instinct that always makes the right decisions.
For what it's worth, I was grandmaster in starcraft and made a decent salary coaching lower rank players during my highschool years, so I feel my opinion carries some weight at least :)
Anecdotally watching and following top e-sports players (in Overwatch in particular) I would see high video game performance as at best a neutral indicator... those archetypes of people are typically very good at the one activity they do all day and very poor at taking care of themselves or sticking to things that don't immediately excite them.
Finally, for many video games are a coping mechanism and may be a better red flag indicator for past trauma, depression, etc.