Please see your local mental health professional to have your prescriptions adjusted.
The reason these all happen in shipyards is because the ship is shut down for the repairs/upgrades to be made, most of the crew is taken off and the ship is given into the care of shipyard workers. With figuratively none of the regular crew, the normal protective systems powered down or even dismantled as is needed for the work to proceed, the ship is going to be far, far more vulnerable to fire than if everything was buttoned up, a full crew was aboard and full electrical and mechanical systems powered up. And shipyard crews tend to be quite a lot sloppier than military personnel.
This is far from unheard of and affects civilian ship construction/refit as well. This recently happened:
https://www.royalcaribbeanblog.com/2020/06/29/shipyard-fire-odyssey-of-the-seas-results-damage-and-delays
It’s not even the first time that we’ve had a carrier burn in shipyard hands. I give you the USS Constellation fire of 1960: https://www.wnyc.org/story/1960-uss-constellation-catches-fire-brooklyn-navy-yard/
Nonsense, if prescriptions need to be adjusted, you might start looking at your own, because as of today there is not enough information out to rule in, or rule out, any explanations.
You claim "accident" is most likely -- sure, I'll agree, maybe 51% more likely, but 49% still says somebody somewhere did something deliberate.
And until we know more, I wouldn't automatically rule out anything.
Spktyr: "This is far from unheard of and affects civilian ship construction/refit as well.
This recently happened:"
Sure, on civilian ships, covered by insurance.
Navy ships are only covered by taxpayers, and any military I ever knew of were fanatics about fire prevention.
Spktyr: "It’s not even the first time that we’ve had a carrier burn in shipyard hands. I give you the USS Constellation fire of 1960: "
I remember 1960 and, sadly, I know how many years ago that was.
Are we saying that suddenly, somehow, navies have grown senile, forgot the lessons of the past and now can't remember what they're supposed to do?
Maybe... could be... but I wouldn't automatically rule out even more sinister explanations.