Do we really need these keys? Minor QOL

Anvil chest keys, Foundry chest keys, prolly a few others. Seeing as the room before them is kill to advance, what point do they serve other than making me fumble around in my bag when I've been playing/drinking for 5 hours straight?

I brought this up on discord some time ago and someone said that the reason was so that groupmates couldn't run ahead and ninja loot the chests before you even got out of the cloud.

I disputed that reasoning/logic at the time, but the conversation went no further.

Keys were also expected to provide a form of income for lower level players