I noticed the lid to the jar of Natural Peanut Butter I ate last night had this little tidbit:
"Oil separation is normal. Just mix back together and enjoy!"
In other words: "It's not a mistake- it's how you know you're eating the good stuff".
If your product has an aspect that appears to be an error, but is really a feature, educating the user can move beyond eliminating a perceived mistake and move towards a signal of quality.