Bizarre Internal Inconsistencies For No Apparent Reason

[Vaer]

But GC leves work exactly the same as normal leves.
Why is there no restriction on normal leves then if they don't want us to do them in a party?

Actually, now that I think about it, I'm pretty sure normal leves DID have the same restriction and they just removed it at some point.

Normal battle leves could always be shared ever since 1.0. There's even leve linking that allows people in the same party to complete the same one at the same time instead of having to do it multiple times per person no matter who initiates it.