E-V13 - Theories on its Origin and New Data

[Riverman]

Most other samples (including E-V13) have been already published, but Sarmatian-era (100 BCE- 400 CE) samples from Romania area are all new samples. 
1/11 E-L618  

We already know this because most of these samples have been published but it's clear that throughout the Pannonian-Carpathian area beyond the Roman borders E-V13 wasn't demographically significant. E-V13 diffused from the Balkans northwards but not from the Pannonian-Carpathian area southwards.

You can claim that, but it doesn't make it true.