This is not an easy problem. It's always intriguing to me how hard it is to write a clear description of your own product that explains WTF it really is.
Yet someone external (as above) can often cut to the chase with a pithy and useful description.
I genuinely don't know what the reason is. In this example, I guess "premium access streaming platform" are not words the marketing team would like (maybe it sounds a bit porn-like ?).
Yet it is certainly way better than "virtual meetup platform", because it clearly conveys who pays what and for whom.
And this is as clear as a bell "You sell tickets for events or seminars or whatever. take a cut of the tickets and host the event. Good for things like training seminars or whatever.".
But again, that's kind of language that the marketing guys/gals might eschew as overly informal/familiar - even though it encapsulates beautifully why I might want to investigate this product.