I don't think so. Look at C# - completely alien to JVM yet getting more and more cross-platform traction via Mono and Xamarin. I think it's more about language

I don't think so. Look at C# - completely alien to JVM yet getting more and more cross-platform traction via Mono and Xamarin. I think it's more about language robustness and appeal. Also switching from Java to C# you loose less than when switching to Python language feature wise.