This makes invoking article 5 likewise somewhat difficult because it allowed other NATO members pressure the border states into "not overreacting". The point is to slowly escalate into outright hostility without ever having "the event" that makes it obvious article 5 must be invoked.
But outright hostility is not necessarily the goal. Hybrid warfare is more “subtle”. Its targets are more diverse and the aim is less overt defeat and more war of attrition in a broad sense. You want to wear your enemy down.
Russia is an imperialistic state that really doesn't like having neighbours that are not under its political and military control. Violating airspace, GPS jamming, cutting undersea cables is just their way of showing force, and damaging us, who they perceive as their enemies for not submitting to their rule.
The only blame placed in the article is targeted at Russia. And I'd quite like to see some speculation on Russia's possible motive for this, it sounds pointless and risky for their shipping on the face of it.