This is not meant to be a video game. It has not much to do with video games and so you cant really compare it. Entertainment will also most likely not mean video games. More like creating visual scenarios for documentations on TV etc.
Depending on the capabilities of the engine, it's what ever you make it to be. Look at Arma communities the world over, like this one, for a prime example.
If that software is as open to modding as Arma while being much much easier to work with, then it'll do very well as a public commercial product.
I for one will take a look at it 'when' it comes available. Quote: Details about availability for "entertainment" purposes will be announced shortly.