

Change.
Star Trek seems to be allergic to any deviation from the status quo. Everything forward must be recognisable to the past, whereas reality is not like that. Everything has to look recognisable, and be recognisable, even when it doesn’t make sense.
Everything has to have impulse, warp drive, for example, or engines that make it behave much the same. All the alien ships work like that, even centuries into the future, when that makes no sense at all. There has to be a Federation.
There’s very rarely any sort of major lasting change that we see on-screen, and I think what Star Trek needs is that growth.
Star Trek’s biology also tends to be infamously awful. It’s always played fast and loose with it, arguably more so than a lot of the other scientific disciplines it covers.
Barclay’s Cold Virus cure causing Worf to devolve into a precursor species, and several of the crew to evolve into hybrid creatures just because it altered the introns and exons. Doing that doesn’t automatically turn you into something else, or else radiation would be far worse than it is.
Same for the Klingon redundant organs. It’s still the same system, so the Klingon redundancies wouldn’t do much good, unless they had something on their planet that meant they needed it, that isn’t just being a fighter planet.
And it doesn’t really address the physiological differences very well. A human and a Klingon hit the same, and have much of the same vulnerabilities. Worf has slight super-strength, but that’s about it.



In their defence, they explicitly say they are not space military. Everyone else just treats them as such. Just because they’ve got exploration cruisers armed like warships.
It’s not any more or less explodable than the rest of the ship. But we do see a good reason. The main screens on the bridge are physical on most ships. So if the master computer fails, they don’t lose visibility completely.
Only if you can power it, and if you can afford to power a replicator, chances are, you can power a phaser enough to be useful, and they’re far more versatile devices.
A regular gun using bullets is just a wasteful toy by comparison.
If anything, there’s the question if why they didn’t just run their phasers at wide beam, and deal with it that way.
There’s no good point. From memory, Worf has to dismantle his badge for it, and it doesn’t last for very long.
Most people just don’t go down where there are bullets flying, and most civilisations use energy weapons like laser cannons.
If bullets were more common, they probably would have them. Similar to why the Borg don’t block bullets with their shields.
Why have pockets if you can have everyone look like they’re in wetsuits? It’s like why no-one has first aid kits, or emergency supplies on them. Who has time for sensibility if you can have the ✨Aesthetique✨?