Trial chamber drop rates feel unreasonable

I've opened 70 ominous containers, and 20 of the lesser containers and have yet to get a core. I have yet to get any wind burst 2 or 3, and have instead gotten 3 windburst 1's. This might be fine if chambers were repeatable, but because the chests are not reopenable, it is not at all reasonable. I'm at over 10 different chambers I've been to, and I'm at the point where I'm just hating the game instead of enjoying the update. I'm so annoyed with it in fact, that it makes me not even watch the content creators I normally watch because they are all doing it, and I'm just SO tired of it.

This amount of grind seems unreasonable for one item that is of questionable / niche use. It takes being geared in pretty much the best stuff to make the difficulty reasonable, and I'm rewarded with 90% food? And other items that would be maybe useful in early game, but not at all useful for the amount of gear required to be able to do such trials legitimately.

The mobs playing hide and go seek during this time, and you having to track them down just to get your reward of food is also very frustrating. Might be worth putting a glow effect on remaining mobs like you can do with pillagers via the bell.

Please either adjust the drop rates, or make the ominous containers reusable every 30 minutes. I'm probably at over 20+ hours in game of doing this, and I'm just so tired. I am only doing this once, and never, ever again, no matter how good or not the mace ends up being. I am tired.

Edit: 82 for the core