Part of what's wrong with so many of these internet-marketers is that everything seems to be positioned as various degrees of "super rockstar ninja greatness". There is never any bad, unmarketable, stupid ideas. IE: no one wants to put their reputation on the line by making a potentially bad call. So, he won't say that your proposal was disagreeable, only that other proposals were even more "super rockstar ninja great".
IMO, if he actually had something great to offer and was bowled over-amazed-stunned at just how great an idea was, he'd find a way to nurture that, not blow it off.