No. That's complete rubbish. They're talking bollocks.
Quote from another Russian player I asked about conecting in from Russia: "I can't answer him yet, but he should use vpn. I have both a website and a game open with vpn. After the blocks started, neither the website nor the game opens for me, it only works with vpn etc. Unfortunately, this is a new reality."
So, it's government rules that are impacting you. Your ISP will know this 100%.