Funny, I look at Dal and think "oooooooohhhh, this is that complaint people make about Mariner -- only actually accurate in this case"
Sooooo much of that is the acting, BTW. Tawny Newsome has line reading after line reading that she delivers with some brilliant sideways spin that is completely unexpected yet also makes total perfect sense, and is funny but also truthful. She's like a Parker Posey. I can't help but get excited by a performance that is that nimble and deft and real. I literally find it exciting just to hear what her instincts came up with whenever that character opens her mouth.
Meanwhile, Brett Gray is saying the words. There's just not nearly as much there. (Which is maybe appropriate for a kids show? But he does strike me as notably flat compared to his 8 Prodigy co-stars as well)
I agree that there is no obvious candidate for captain (though Gwyn seems like a more obvious captain-in-waiting, once she's properly completed her Trek Redemption Arc), which is fine, at this point it doesn't seem there has to be. There is an interesting story in them figuring out how to function as a crew without an initial obvious leader. I also think Dal could function fine as one character among an ensemble of equals, or as a supporting character to some other lead.
It's when the show is centering him as THE lead that the trouble starts. I just haven't seen any justification for that yet in the actual writing or performance.
Maybe next week, though! I live in hope.