It's not a question of silliness, I think, but a question of cool. Star Wars, at its core, has always been (or at least was traditionally understood as being) cool. Scrappy Jedi fighting against fascist Imperials are cool. Cocky, roguish smugglers like Han, and swaggering entrepreneurs like Lando, are cool. Badass, take-charge women like Leia are cool.
A group of nobodies in a nowhere corner of the galaxy chanting silly chants? Not very cool. Jedi trying to coerce children into abandoning their families to join the order by letting them handle a lightsaber? Not cool.
To circle back to Andor, because all things Wars should circle back to Andor these days, as grim and intense as that show is, it's also cool, because Andor himself is a charismatic, cool dude. He has the guts to fight cops rather than let himself be arrested, the grit to swiftly execute a comrade-turned-traitor, and the daring to incite a prisoner's rebellion. He's cool, damn it.
Not every genre property has to foreground cool. Indeed, Trek thrives when it focuses on professional dorks, doing their jobs cooperatively and constructively. But Star Wars should probably always be cool. Don't want to make something cool? Maybe find another IP.
LOL
