

If anything, this would mean the complete opposite. If they can only viably access internal, national sources (which are generally known to be state-controlled), they will resolve to consuming national content only.
The longer this persists, the worse it will get. This is not good news, in any way.
I don’t believe that to be very likely. The Russian botnets and the like don’t necessarily operate from within Russia. Furthermore, the article states major Russian ISPs, meaning this affects a lot of common people, but unlikely governmental instances.
If the choice is between less propaganda for me, and less for them, I would choose the latter. I daresay the rest of us are much less susceptible to the propaganda than Russian citizens.
Worst case scenario is that we get a case like North Korea, where the outside world cannot do anything that harms them without the government there being able to say to its citizens “See? We told you they were bad!”.