No...not the end. In fact, the tuba revolution is marvelous! A wonderful instrument with a huge potential for making great music. Perhaps (as indicated by my avatar) I am a bit biased, but you should take some time to check out these banda tubists. Some of them have skills on their instrument that rival Jake or James.
Besides, should players of an instrument as (wrongly) maligned and belittled as the ukulele make fun of another instrument?