The newly opened line is only about 10% of the capacity of NS1 and NS2, and much of that 10% will be for Poland, so it won’t have much of an effect on general EU shortages.
Nor will it flow much more gas than it would have with NS1 and NS2 online.
Over all, I’d say that the removal of NS1 and NS2 would not have much effect on the profits from the new pipeline, due to it’s comparatively low capacity.
So I doubt the new pipeline is connected to the sabotage events.
That’s not the point. The Poles blew up this one, sp blow up the new one they like. Same way, and act mystified about whodunit.