I don't think we've been consistently poor, I think we had a really bad patch due to injuries and two of those players were season long injuries, with other players (Stones, Akanji etc.) also missing much of the campaign.
Despite everything we're still currently 4th on merit and in the FA Cup final and I really don't think the team get enough credit. You can't win everything every season, while that might be an amazing achievement, that WOULD be dull and uninspiring, it would kill the game as everybody, City fans included, would get bored of it. You need competition and a certain amount of jeopardy, it's part of the entertainment.