[2022] Overpenetrations are completely out of control

The mechanics have changed very little.
The enormous shells on Musashi / Yamato are going to overpen light cruisers frequently. There are a LOT more light cruisers in the game now than there were when Musashi came out.
As a battleship with 460mm guns, you should be aiming at mostly cruisers that possess 30mm decks / upper hulls. Those will be your bread/butter. If you can reliably hit the nose of other battleships, go for it, but that's hard. Otherwise slam any BB that shows you it's broadside and profit.
Give us some more info before you convince us the game is broken

Are you certain the shell armed and had enough time to light off within the Citadel? An Overpen on a citadel is possible, certainly, but there's a lot of context that goes into those calculations.

That existed in early iterations of the game and was removed.

Cleveland's Citadel is very low in the water. A battleship firing has a small area to score a citadel, and may even need to risk firing slightly into the water to hit it. That's not easy.

Are you actually accusing the company of manipulating your RNG in order to take money from you?

Enough.
It's one thing to be upset about getting a lot of overpenetrations. It's another thing to accuse the game of conspiring to curse your RNG to magically bilk people out of money.
You're playing a Musashi. It has terrible accuracy because that balances the fact that it's a Yamato at T9. You also have massive shells, which means you overmatch things that few other things can but you also overpenetrate things that others don't. There are plenty of Community Contributors, Twitch Streamers, and other folks out there who can help you identify what will help you get fewer overpens, but this is getting silly now.
Time to be done.
P.S. - I will even spend some time showing you where and how to aim with 460mm guns if you like. DM me and we'll set up a time.