I disagree with you there Chris.
VRC is more realistic for US control then Euroscope, which is why it is the US default, while Euroscope is more realistic for Europe, hence why it's the Europe default.
While Euroscope does have a steeper learning curve, this is not the reason that US controllers and facilities have made the switch to Euroscope, While some also support Euroscope, the majority don't as it does not serve many advantages to US controllers.
Cheers!
Rahul