In your opinion would a clean patterned spider (no spots) produce cleaner offspring then a muddled spider? Much the same way people believe you can get good looking pastels from ugly parents?
I myself am a sucker for clean, reduced patterns but does it really make that much difference in the offspring?
A coworker and I were talking about Boas and the speckling that occurs and the topic shifted to ball pythons, I think it does matter, she does not.