Well, I think this is true. I'm hungarian, but more than half of my ancestors were rusyns from the northeastern Carpathians. All of my ancestors (rusyns and hungarians too) lived Northeast Hungary, and I don't have any croatian ancestor.
But my eurogenes K13 results:
[TD="width: 40, align: center"]1[/TD]
[TD="width: 220"]Croatian[/TD]
[TD="width: 50, align: right"]3.12[/TD]
[TD="width: 40, align: center"]2[/TD]
[TD="width: 220"]Moldavian[/TD]
[TD="width: 50, align: right"]4.93[/TD]
[TD="width: 40, align: center"]3[/TD]
[TD="width: 220"]Hungarian[/TD]
[TD="width: 50, align: right"]7.46[/TD]
[TD="width: 40, align: center"]4[/TD]
[TD="width: 220"]Ukrainian_Lviv[/TD]
[TD="width: 50, align: right"]7.51[/TD]
[TD="width: 40, align: center"]5[/TD]
[TD="width: 220"]South_Polish[/TD]
[TD="width: 50, align: right"]8.39[/TD]
[TD="width: 40, align: center"]6[/TD]
[TD="width: 220"]Ukrainian[/TD]
[TD="width: 50, align: right"]8.62[/TD]
[TD="width: 40, align: center"]7[/TD]
[TD="width: 220"]East_German[/TD]
[TD="width: 50, align: right"]10.2[/TD]
[TD="width: 40, align: center"]8[/TD]
[TD="width: 220"]Serbian[/TD]
[TD="width: 50, align: right"]10.27[/TD]
[TD="width: 40, align: center"]9[/TD]
[TD="width: 220"]Austrian[/TD]
[TD="width: 50, align: right"]10.72[/TD]
[TD="width: 40, align: center"]10[/TD]
[TD="width: 220"]Polish[/TD]
[TD="width: 50, align: right"]11.57[/TD]
Mytrueancestry results:
1. Croatian (6.337)
2. Slovenian (8.138)
3. Moldavian (9.529)
4. Austrian (10.47)
5. South_Polish (10.52)
6. Ukrainian_Lviv (11.32)
7. Hungarian (11.50)
8. Ukrainian (12.31)
So according to my opinion: my northeastern Carpathian DNA heredity is very close to the modern croatian, without any modern croatian link. It can only mean one thing. The croatians and the rusyns are also descendants of the white croats, the "harvati" people.
Anyway I determined many Y chr haplogroup of my ancestors and according this, my ancestral hpg-s:
E-V13-CTS9320-Z17107-A19238
E-V13-Z5018-L241-A7065*
I1-L22-FGC14412*
I1-Z60-A378*
I2a-L621-S17250-A1328*
I2a-L621-S17250-A7358*
I2a-L621-S17250-not completed yet
I2a-L621-Y4460-Y3118*
I2a-L621-Y4460-Y3118* (completely different family without any deeper common SNP)
Q-L332-BZ3944*
R1a-not completed yet
R1a-L664-S2866*
R1a-M458-L260-YP415*
R1a-Z280-S24902-YP4090
R1a-Z280-Z92-Y138015*
R1a-Z280-CTS1211-Y35-YP4706*
R1a-Z280-CTS1211-Y35-YP1701*
R1a-Z280-CTS1211-Y35-YP234*
R1a-Z280-CTS1211-Y35-PH864*
R1a-Z280-CTS1211-Y35-Y3219*
R1b-U106-DF98-S22116*
R1b-U106-L48-Z326-S21728*
R1b-U152-S8172*
I think many of them are common in the modern croatians.