The guys started an active search for investors and support from outside, because I personally think that visiting such events is not only aimed at demonstrating your project, so many people know about it, and finding like-minded people, but also an investor who does not only "good word" support.
Good move, clever and thoughtful, the decision of a real man!))) (I hope they have a man there who manages everything)
And why not, can afford. A lot of people just silently silent and dream about this, I myself would not refuse to just attend VidCon, there is something to see and learn from.