And the DIS s1 klingons look broadly like the TNG klingons, just exaggerated.
Then as someone who does know a lot about this stuff I can tell you that you are making a lot of assumptions that are not the case.
...That's literally what happens in the Dune books.
I mean... not that much. Daleks have gone through three redesigns just since the show went back. Sontarans went from the world's most unconvincing rubber masks to makeup. And how many eyes do Silurians have-- two, or three?
because apparently Star Trek, unlike every other fantasy and science fiction thing I like, is Forbidden from being treated like a secondary world that should have its own internal consistency.
Nonsense-- other long-running universes encounter retcons and visual redesigns all the time. Quick, how old was Dick Grayson when he first became Robin? What color is Superman's S? How old was Magneto during the Holocaust? What happened to Luke's father? Did James Bond fight in World War 2, or participate the Cold War?
Sadly not yet.
Isn't Galt the colony the Rozhenkos lived on while they were bringing up Worf?
And all because some poor schmuck at an early radio lab had a candy bar in their pocket that got melted.
Memory Alpha seems to think that Vasquez Rocks is playing itself in that instance
Not only does she have her necessities, her pissant trailer is bigger than any house I've ever lived in and is smack dab in the middle of a state park.
It's important to remember that Earth has an outsize influence on the Federation. The capital is, and always has been, there, and will continue to be until such time as it secedes entirely from the Federation after the Burn. The Academy is there. Starfleet is headquartered there, and grew out of United Earth's space service. Most of Starfleet is human, most Federation colonies are human. Azetbur was mistaken to call itself a "Homo sapiens-only club" but the fact is that from the beginning, as the only planet with friendly relations with Vulcan, Andoria, and Tellar Prime, as the very reason the Federation exists... Earth found itself with a power dynamic that highly favored it.
As such, I don't think it's too surprising that a specifically Earthican problem could weigh heavily on the Federation, even as it grew larger and more cosmopolitan.
It does though. As the others said, Scotty did have to jury-rig some modifications for long-term storage and even then he wasn't able to save the other survivor long-term.