In Battlemaster, there is no creation of new nobility. Adventurers are "lost" or "unknown" members of noble families. They are not made into new nobles or the first member of a new noble family, they have simply managed to get their claim to membership in a noble house recognize.
Now, whether or not it is too easy or too hard to get an advy recognized as a noble is a separate issue. I don't really have any opinion there. I have had two advys, and neither managed to get more than 2 recommendations.
