Is there even a concrete proof to show that this is really happening at all, they are just speculations and I haven't heard about anyone talking about an attack on the bitcoin network as at now but whatever they are doing, it's not going to succeed.
It's just a mere speculation and probably targeted at spreading FUD's and taking the shine off what would have been a perfect celebration of Bitcoin for reaching 10k$ and going past it. I likewise don't see any credible substance from this piece.