They may have gotten some involment, but Berlanti and Helbing are in charge of the show and the writing still. And even if it stands on its own, it's still directly linked to the Arrowverse, both in the story and the actors involved.
I do agree that it hits pretty different from the rest of the Arrowverse though.
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That's kind of the defining trait of teenagers though. Their priorities are all kinds of screwed, and a big part of growing up is learning what actually matters and what's not very important. And can you blame Jordan for thinking that the game against his old bullies in metropolis isn't a big freaking deal? The poor guy has been an outsider and a ball of anxiety all his life, and now he finally has somewhere he feels he belongs. AND an opportunity so show up his old enemies. Hell, *I* would rate that pretty highly. Actually, the entire point of General Lane is to contrast his viewpoint that Superman should save the world 24/7 with Clark & Lois holding on to that he needs some time to itself if he's to function, actually. And that includeds taking his kids to the ball game.
And the show is inching towards landing on their side - a Superman without friends and family might be the single greatest threat the world has ever seen.
I fully agree on the rest of the points. I love the relationship between Jordan and Jonathan, they're under a huge strain but manage to come back to supporting each other every time - so far at least.