That's why I wrote 'some of.'
If they had maintained the level of quality the Nu52 Superman had during his first year then he likely would still be the main Superman and I'd be fine with that. I thought the reboot was a good thing for Superman at first since the line had been so bad for so long, and there was an immediate jump in quality, at least in Morrison's Action run. Unfortunately, editorial mismanagement and a series of blunders squandered the potential Nu52 Superman had at the start, but the potential was definitely there.