Happypaphy7
Paphlover
I agree with you. Complex hybrids that bloom out consistently good can also have odd blooming, and such odd blooming (I don't think it's necessarily culture related but rather random occurance) can sometimes vastly different.We’re going off one set of flowers here so unless you grew both pieces impossible to say. But you did post that big bush of an emersonii a little while ago so I’d put it on your good culture. The divisions I saw were overdue for repotting
To be fair, Tom's photo above also looks quite different than WC 'Indomitable' FCC in that the petals are way too droopy and the dorsal is meh. My initial impression upon seeing that photo was that it is either mislabeled or on its odd blooming. So, I would understand that he wouldn't want to buy it as a true division based on the less-than-ideal blooming. It is hard to tell.
When you get a division from a reputable source, there's nothing much one can do other than to believe their words. If possible, it is probably smart to have some sort of agreement in place just in case it turns out to be something else after a few bloomings.