What they should do is make it so you have to complete the levequest. Pretty much do it like fov pages (since they are a glorified version) meaning you only can cancle a level at the source and its gone from your journal. Meaning you have to do the leves before you get new ones.

Maybe get rid of the reset and just let ppl do guildleves. if they so choose. They did increase the sp on mobs maybe make leve mobs have similar sp to the other mobs in the area, just keep them leve tagged. That way no matter if your doing a level or just normal grinding you get the same sp on said mob levels range. But give bonus sp at the end = a bit more.

And if you fail or cancke it, the guildleve is gone from your journal.