Often these are the Castile Makers. They just love to stir soap. For days and days 'til they get a trace. Kind of a well earned reward. The recipe sucks if the owner can't get the bucket of oils to trace in ten minutes or less.
Some people hate the use of blenders.
I think it just represents change, and they don't do change well. Soap is a vehicle for scent. A rather obsessive bunch, they tend to sniff alot of things. Very nose governed. Color is everything to them.