Blueprints are a toy. Which serious Unity dev would use UE4 without C#/F# or UnrealScript!?

Can’t really agree on that matter. If that tool(Blueprints) allows to complete same task as programming(Release a working product on multiple platforms) and development process based on same basic principles as programming on C++/C#/Java/Basic/Any other language you like then it’s definitely not completely different to a programming.