I did it last year and it was all heavily focused on "lets catch our next billion dollar unicorn" for our investors. People that don't live for idea "lets move to dream country USA" just waste time while participating. Additionally, Y decided several times to "change the rules" just for the sake of it. They basically can not handle amount of people that have a dream to start something and it all ends up to: 1.) put them in groups, 2.) let them report "progress" to us 3.) let them watch videos.
Granted, there some interesting materials but all of them you can ALREADY find online or in startup/scaleup books that we are all reading and recommending.
My 2c, take it how ever you wanted. For me it was waste of time and quite of bit of irritation around Y. However, met some great folks that were also trying to start something in my group.