I noticed this, too. Seems like everybody who has used a product other than GJ's H-D conditioner or Zaino (love the stuff for car care, by the way) has problems.
sample size of what, 3-4 people who said they used something and are seeing their leather break in like normal?
Only one guy posted pics, and it's a far cry from what I'd call worn seats. So until a better definition is defined as to what is actually wear, the above is a pretty far cry of a correlation to make.