I did like those uniforms. Disco style, but TOS colours. I can see why SNW didn't use them, but it's a shame we only got a handful of appearances from them.
I kind of like it. Like, he's spent his whole life preaching the Federation ideals, trying to be the best he can be, and after all that, it cost him his son. I know that means less for us who only heard about David in TWOK, but watching Strange New Worlds now and hearing him talk about being in a relationship with 'Carol', it actually kind of retroactively hurts, because we know how it ends.
And it wasn't death in battle in a dangerous job that David chose to do, he was murdered by a Klingon saving the life of someone Kirk hardly knows.
He didn't steal the Enterprise and go on a genocidal rampage of Kronos or anything either.
You can't expect the man to be a saint after all that. Sending him to be the ambassador to the Klingons was cruel on Starfleet's part, even if Spock did vouch for him. Totally on point, seeing how they did the same thing to M'Benga, Chapel, Ortegas etc. after the Klingon war. But still. Cruel.
And even after all of that, even after 'let them die', even after becoming the obvious suspect for the assassination of the Chancellor and being sent to Rura Penthe... he never actually DID become the monster. He was still the best of Starfleet.
If Starfleet had the ability to duplicate that freak transporter accident at will, do you honestly think Section 31 wouldn't do that to their agents before sending them on a dangerous mission and put the original in stasis until they knew whether the duplicate had died or not?
Also, someone's already asked that here. If you duplicated Tuvix, you have exactly the same ethical dilemma as to whether to murder the new Tuvix (I can't in good conscience call that one the Twovix thanks to the brilliant LD episode, but maybe I could get away grammatically with Toovix?).
In fact, that would be even worse. "Sorry guy, we created you in a transporter specifically so we could murder you and bring back the originals...". At least the original Tuvix was an accident. Creating a sentient being specifically to murder it is... well, it's something Archer would do, come to think about it. RIP Sim.
Check out Redshirts by John Scalzi.