Dana's doing exactly what he should be doing as a smart business man.
He's not encouraging fans who dont already know about Fedor to go and find out.
What do you think would be the first thing a fan who wasn't aware of Pride and Fedor would do if Dana goes "yeah Fedors probably the number 1 HW in the world right now". They'd rush onto youtube and get all excited from watching that stuff that they'd then probably buy the next M1 promotion.
Buy talking it down the knumbskull fan that probably makes up about 40%-50% of the UFCs viewing population will never know about what Fedors accomplished and is capable of.