Yea all that sounds reasonable. On long range/intensive missions yea you're gonna bring the whole team to do the grunt work while you take care of command, but for a quick jaunt to the nearby asteroid belt with maybe a small pirate/scavenger population that your guns can blast away without much of a sweat you don't really need Billy The Loader to hang out with his thumb up his ass watching the ore flow, or if you're going on a blitz on a compound or whatever there's no reason Jimmy the Electrician needs to be at risk when your main strategy will be 'I'm gonna wreck it'.
Drones are advanced enough in this universe to handle the grunt work on the fast 'I'm getting in my gunboat frigate and I'm gonna see if I can't blow that jerk up before he blows me up', and as said before a battleship or the like doesn't just completely blow up in a second unless something huge went bad for it, there are tons of reasonable ways to have crew without the guilt of every rat trip involving letters to sobbing widows.
I like the idea of crews in our ships, or involved in them at least. Crews are fun to write about (for me at least) and they're a good device to keep the whole 'death means nothing I HAVE CLONES AND A POD I AM UNTO A GOD' deal more down to earth. It's hard to be a cackling wannabe god when Private Biff is on the drone controls and he'd super rather not get blown to crap because some dude at a bar called your jacket lame.