Ship repair is not new gameplay. I can press a button to repair a ship now.
Not being able to replace to repair the powerplant is a deliberate design choice, you won't be able to do that if ship interiors were implemented. If the whole argument is based around needing a full size DLC because low skill players need a crutch for something that other players can get around (i.e. don't crash into exclusion zones, or put in a powerplant where everything functions at 50% power) the idea is already dead in the water.
You know ... I'd be fine with your argument that the power plant being unrepairable is a "deliberate deisgn choice".
[Even though "Reboot&Repair" would question the validity of what you claim to be a "deliberate design choice" but nvm

]
It is SOME way of "perma"-damage, that I'd be willing to accept.
But if you condescend towards the entire idea of manual Ship Repair as something like "low skill players need a crutch for something that other players can get around",
then honestly, I think I am not the one with "low skill" here ;D
+
Ofc you did, and yet you used an argument you absolutely knew to be without foundation and logic just to hurt Ship Interiors XD ... Isn't that dangerously close to "hating"

?
BUT props to you for now arguing:
I can see it now. I think I'll just pop down into the bowels of the ship to manually repair something I can't do from the cockpit, this seemed such a good idea in the forum, but now it's getting tedious. Ah, but immersion! Oh, there's another ship out there. I hope it's not ACowForAllSeasons. Oh I'm dead.
So you would describe manual Ship Repair as "tedious". Then use an AFMU

(Hell FYI there is even Auto-Dockers now XD) {Or just ...
CONTINUE to live with the dmg XD²}
Only the Power Plant would still "need" manual repair (YET as long as I have the CHOICE, I'd be fine with allowing the AFMU to overvome its current limitations)

And when it comes to "Oh, there's another ship out there ... Oh I'm dead." you are once again purposefully bringing up an argument you KNOW to be without foundation as its already been dismanteled often enough: Extremely simple solution; As soon as you take damge ... you simply portal back to your helm via
Telepresence 
Mind-Blast right? ... Works for SLF after all. ... And that is just ONE idea <D
And finally:
There would be howls of "PAY TO WIN!!!" over that which would make the fuss over Early Access ships seem like the faintest of whispers!
Are you kidding me? ... So the ability to manually repair the Power Plant (and ideally core-modules) ...
-which would leave your Ship defenseless while you do so,
-which would be immediatly canceled as soon as you recieve fire ... AND
-which should IDEALLY be
FREE to all Odyssey owners ...
would "make the fuss over Early Access ships seem like the faintest of whispers!"
...
WoW.
...
Do you even know what
"PAY TO WIN!!!"
means? ...
Because according to your logic there is already PLENTY of Pay2Win in Elite and I wouldn't even necessarily disagree with that ...
but Ship Repair would NOT "make the fuss over Early Access ships seem like the faintest of whispers!" XD
(I mean, MAYBE it would if the new Powerplay was not once again affectable by Solo&Privates but yeah <D)
So it really won't XD ... At least not for 97% of the playerbase
