For any regulation or directive to pass, it needs to pass both the Parliament and the Council. Passing the Council means it needs unanimous approval from every member country. I don't see what "blocking majority" the article refers to, one country should be enough. Unless they mean stop it even before it reaches a Council vote, in which case that might be true.

It's a council of the EU vote (as apposed to an EU council vote, different council). Within certain treaties (in this case the Lisbon treaty), certain matters only need a qualified majority (>55% of countries, 15 approximately, and to represent>65% of EU population).