How can you gauge any of that from watching a player on the pitch without projecting your own biases? What if Milner didn't actually have much motivation or desire as you say, but was actually just really gifted at learning new positions and improving as a player? Conversely If you don't have the ability to improve in a position, it doesn't mean you're any less of a pro.
But yeah it does seem like your definition of a model pro is different from most. Most people refer to conduct, how they train, application etc. Westwood hasn't put a foot wrong in those areas, and has been praised by his previous managers and people like Stan Petrov in that respect. So while you might say that calling him a model pro is a bit too much, is it really such an egregious statement that you have to bring it up again months after the initial discussion?