It’s good to keep in mind that most of the players don’t give a poo about visuals like dynamic GI and stuff. What most players care about is great story and gameplay. If you loved the Witcher series and then suddenly Witcher 3 came out built on Source (Half-life 2) engine - would you still play it? I bet you would )) I don’t mean that the tech has to be old, I myself would love to have my game properly lit and shadowed. But I’m more concerned about the lack of communication, features being abandoned a few releases later, not-so-great documentation and engine performance. This is what can prevent your game from being developed. Not the missing dynamic GI solution.
Regarding VXGI 2.0 and VXGI in UE4 in general - right now it’s not good for anything (games - poor performance, archviz/vfx - light leaking and so on). It’s a research project, not a game ready tech.