There was still lesser in the pairing.... So it's hard to say. Lesser and butter are basically the same gene with polymorphic traits. So it could also be mislabeled.
Champagne unfortunately tends to disrupt most of the patterns and markers you associate with the different genes. I do feel like lesser/butter would be more likely to help wash out the darker headstamp that champ and enchi can leave.
The only way to know for sure on 1 & 2 would probably be breeding it out to see. But just remember not to cross them back to anything champagne or spider complex.