Yeah, you and I agree on this point about Pike's tone as Captain. Look at TNG – a lot of its greatness pivoted on Patrick Stewart's gravitas. His Picard had a profound awareness of the stakes of every decision. There was nothing cute about interspecies negotiations.I have a bit of an issue with Pike's character.
He lacks agency. Stuff is always happening and he's just along for the ride.
He's always looking to make a joke or sarcastic comment even in serious situations.
Even Shatner's Kirk was dead serious with every command decision. Sure, Kirk would absolutely have ended up in bed with Alora (can't blame him), but he carried an air of authority in his role as Captain.
Mount has the chops, but he needs to find Pike's steel underneath his humanity.