Remember Angry Birds? Rovio took VC funding. How did that work out?
Netflix arguably may have run itself into insolvency by overspending on original content to the point where it enters a death spiral of losing subscribers and raising subscription prices to compensate.
Just because you create 1 successful game or TV show or movie doesn't mean that if someone hands you a large check you can't create 10 more just as successful. It doesn't even mean your organically successful original content will remain successful.
Of course there are successful franchies in gaming (eg Call of Duty, Halo, Assassin's Creed). These may end up being worth something and do have an inbuilt audience so they scale better ut they still take significant work.