It is true for films and music.
If you do not own the intellectual property, and do not have a written release or license to exhibit the property in question... it is illegal for you to do so... Movies, music, video games, television...
Trailers are a little different... especially since the companies are posting them and allowing you to link to their streaming service.
The companies should enforce their rights... if they lose their profits, then we have to pay more for games.
For the record... the video game tournaments (the big ones) have already secured the licenses for exhibition... they are already paying for it
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Yeah. I'm done. Don't bother messaging and expecting a response - i've left WP permanently.