lol and now they've announced they're dropping the hero bans for low ranks - knee jerk away boys!
I don't think it's knee jerk... they tried something, they got player feedback, and they reacted. Lower level gameplay already has lots of variance in team compositions, so there is no need for hero bans to force variation. I might hamper some of the higher level one tricks, but that's maybe not a bad thing. There bigger concern will be how much it upsets the pros because the need to rework tactics every week, but since pro teams are so similar to each other, they are all in the same boat.
Also, I think in silver/gold many players are only good with a couple of heroes in each category, so losing one or two of your favourite heroes for a week really messes up your game, so hero bans were not helping the lower ranks.