It's been over two weeks. I wouldn't really call anything they do at this point quick.
bCs been testing them in streamed ladder matches.
People poopooed him for using what are community-wise considered broken and OP Commanders vs the general populace, but my viewing of the matches indicated to me he had a deliberate purpose.
He wasnt leveraging the Commanders for wins, he was almost deliberately losing units and setting up engsgements testing purposes.
Say what you will of bC, but he is a VERY good player. He could have easily steamrolled, especially with these Commanders, but he didnt. He was clearly testing how things play out in specific scenarios as related to these Commanders in a live population setting vs random players rather than just the beta crew, pros or staff.