I feel it's okay being at 1%, it's been that way since the beginning of the quest. It wasn't a problem then, it shouldn't be a problem now. I have had my fair share of doing the quest, and it's worth what it is. Anyhow, they've already made Lost Dragon to spawn every 20 minute instead of the usual 1 hour, I suppose that should be easier now.
Just make a High Wizard or a Stalker to farm, it'll come out. 1% is quite a lot if the mob population is high, 10% is just too easy to get for an item that only requires you to get just 1. It's just my opinion.