The simple answer is that the tag team division matters in Ring of Honor. Are Claudio and Hero worthy of singles pushes? Absolutely. Are they consistently needed in that role? Not really. They mean much more to the tag division right now than any other team in wrestling. That being said, Hero did just get a ROH title match, and I would expect Claudio is in line for one. The singles division isn't the deepest at the moment, but ROH was probably unable to bring in anyone else due to their impending sale. As for Hass and Benjamin, it doesn't make a ton of sense to make your tag champs main event singles stars. They would work great in that role, just not right now. However, it has always been a ROH hallmark to give major tag team guys world title shots, so I wouldn't be surprised to see all four guys in the singles mix from time to time.