"This con is primarily a celebration of BBC Sherlock, however, we’re very excited to make it a place at which we can invite discourse on the topic of Sherlock Holmes and his many incarnations." While I suppose a BBC Sherlock convention would anthropologically interesting, my main interest will always be the Canon. I do not see much attraction for me personally. I wish them luck.
I kinda like it all, as long as it has a good base in the Canon.