I’ve checked it out. Most of his descendants are R1a1 ,and two of them (who also are genetically very different from each other) N1c1. Those with I2 are historically doubted to be his relatives.
So still the most plausible version is R1a1. But the differences are big enough to suspect that Rurik as we know him ,never existed. But its nothing bad ,Lech or Ragnar Lodbrok as we know them also never existed. History is part o politics.