To defeating the purpose, maybe we'd prefer it without one? I mean, it still takes the same amount of materials. Maybe debuff it to make multicrafting less efficient for exp/mat. Just get rid of the restriction.
Its actually not minor, it slows things down to an annoying level. You cant really get rp areas done when you're waiting 2 hours on a stack of bricks, but also need doors and beds and all that other yummy stuff. Building a simple house takes days, realism is nice, but there needs to be a balance.