A timewasting chore. Boring, completely unfun, 10 minute long slog. With a good chance that you will need to waste another 10 minutes to get all the items.

And what do you need to do in the instance? Mindless running, like an NPC, from one point to another. Just mindless 10 minutes long time waste, no challenge, no interesting mechanics, absolutely zero point in it.

And if you have few characters you want to do it on, it turns into absolutely horrendous grind from which there's no escape.

Imo, if you can not be asked to make an interesting duty, just refrain from making mandatory duty at all. Let there be just a fast skippable back and forth between couple NPCs like you did previous times.