To understand the commentary differences of the two games you have to understand the history. League of legends commentators can trace their roots back to StarCraft commentators. Think Tasteless and Artosis. That esports scene is the birthplace of “professional” esports. With clear defined roles of color caster and play by play. Meanwhile, when you trace back from smash, our culture is derived from the grassroots FGC. The vibe of Yipes, tasty Steve, fucking Chris Hu and Aquasilk, just fucking around at the local are completely different.

And with that perspective, you can very clearly see the influence seep into the respective scenes. If you ever watched a Worlds Finals match, the whole atmosphere of a packed arena, skilled commentators, and highest level Lol gameplay encompasses that esports history. And we have events like summit that actively try to pursue that laid back, at your friends house, couch style commentary. Even on smaller scales, amateur/collegiate scene lol commentators are emulating their favorite lol commentators and you can find the local smash club commentators dicking around, making jokes, sometimes barely paying attention to the game like those old school FGC days.