Guildleves have the perfect core required for a game where repeatable content is a must.

They allow for the developers to control the pace of leveling, party set-ups and locations instead of having to guess what the playerbase might end up doing at any given time.

They are not fleshed out and are not properly designed for repeatibility. If you can't think up one good way to easily fix both of these problems you really are hopeless. There's nothing easier than making guildleves fun at this point.

But the community figured the primary leveling feature of the game is not important while an AH is absolutely necessary asap, so SE will take ages to get anywhere. Cool stuff.