I don't understand this comment. If you want to be the minimally charitable + maximally accurate commenter your tone suggests, then you're also wrong.

It's a superset of the reasons you poorly articulated, and those reasons would include the fact it's cool. Cool things can help both recruitment and morale, and the US military seems to recognize that: https://armedforcessports.defense.gov/Sports/Esports/

If this is just meant to be another comment on the situation which comes with an implicit grain of salt, then the browbeating doesn't make sense.