First of all: I understand why you don't get your materials back when you DC, I know that people would game it to basically get a free Reclaim.

However.

Is it too much to ask to have a more than 0% chance to get your stuff back? Like, the same as the base chance?

If you fail a craft normally, you have a small chance to get your materials back, whether or not you used Reclaim. But if you DC, you don't have any chance at all. The materials are deleted from your bag (yes, deleted, materials aren't actually removed from your inventory when you craft until the craft is complete).