This isn't going to do a whole lot to quell the Team Fortress 2 comparisons, but it's pretty interesting to see how the developers react to top players -- and how the players respond in turn.
It's also an opportunity to check out how far Blizzard has come with their spectator client for Overwatch -- although the person controlling the camera could probably tweak their sensitivity a bit.
It's a best-of-seven series with the developers across all of the maps currently available in the beta. It's a useful primer for players and teams on what angles and combinations might be worth rolling with, although given how fresh things still are it's hard to say whether these matches will have a great impact on the Overwatch beta.
The main utility from the videos is how it shows off Blizzard's spectator client, which is pretty fleshed out given the closed beta only kicked off last week.
You can watch the rest of the matches here. It's fascinating seeing how well the developers held their own; it says a lot about the decision making behind what heroes you swap to, which should give a lot of confidence to people concerned about whether Overwatch will be just another team-focused twitch shooter.