In real life, when we get really good at something after years of practice, we can sometimes do it without a pattern. (e.g. knitting a scarf). So I thought it would be more realistic if we have a chance of getting the pattern back when we Unmake something. It would also make it a bit less frustrating and more fun to hit that 10,000 unmaking goal for the Unmade Pattern. :)

e.g. once you have reached, say, level 8 or 9 Tailoring, then when you Unmake something, you have a 10% chance to get the pattern back as well.