It seems like you're making a distinction between types of work.
For hobby or artisanal pursuits, homogeneity isn't the goal. Often the uniqueness is a feature. But for mass production or large coordinated efforts, uniqueness is a bug. You don't want your car to be manufactured by someone who just felt like a 3mm panel gap felt more right than the 4mm gap the specs called for. Standardization makes coordination easier and that's why some products are better when they are homogenous while others are better when they're allowed to be "creative."
For hobby or artisanal pursuits, homogeneity isn't the goal. Often the uniqueness is a feature. But for mass production or large coordinated efforts, uniqueness is a bug. You don't want your car to be manufactured by someone who just felt like a 3mm panel gap felt more right than the 4mm gap the specs called for. Standardization makes coordination easier and that's why some products are better when they are homogenous while others are better when they're allowed to be "creative."