Blizzard are still simultaneously making gross comments about how players are just too stupid to see that they are wrong about wanting to play 6v6 whilst not actually delivering on their previous claim that they would offer it as an alternative mode at some stage.

I can't see how it would be complex for them to do it. They already have a balance patch for multiple tanks and you can enable 6v6 in the workshop. It can't be very difficult for them to spin up a 6v6 quickplay. What do they have to lose if they are convinced that the playerbase doesn't realise how little fun they'd have playing it? Either Blizzard are right, people play it and say "y'know what? Their condescending comments about how 'nostalgia is a powerful drug' when we say we want 6v6 back like they promised were right after all! 6v6 does suck!" and then they can just take it down, or Blizzard are wrong and offering it as an option makes their players happy and excited to play more Overwatch.

It's a win-win so long as you're not making your decisions based on sheltering the ego of the individual developers from having to deal with being wrong about stuff. Multi-billion dollar businesses would never make silly self-destructive decisions based on something like that, right?