I posted a report on the exact same issue, with a couple of video attachments.
I hope this gets fixed soon, because the trident is fairly useful! 🙂
I am a little upset that this was removed. it was a bad thing but i figured out a way to use it as a dupe glitch by saving the world with stuff in a chest then going in taking the stuff causing the game to crash and then going back in and it would be in both my inventory and in the chest. it was pretty awesome. i really want to find another way to crash the game to see if it still works with a different crash method.
I think that the other commenters are correct, as well; at the very least, we need a way to disable this specific error from spamming the log. I really want to play on this datapack, but I don't want my motherboard's SSD to end up getting damaged by doing so. We really need a 21w17b datapack that doesn't crash the game or literally damage players' hardware... 😞