...in often distant second-class-citizen form, and a cursory glance at the docs of any of the big-hitting data flow platforms will show you that it's Java/Scala

...in often distant second-class-citizen form, and a cursory glance at the docs of any of the big-hitting data flow platforms will show you that it's Java/Scala or bust (with some Python/R sure but to get serious you have to speak to them in their native tongues).