I stand corrected.
To my knowledge nobody has slagged SISK off or blamed them for the odd wonky finish. People just pick up on those things from the drone videos. The wonky roof was fixed eventually. The rumour is that City and Sisk watch the drone videos as they give City and Sisk a valuable insight into how the construction is going from the air, which they can watch for free instead of paying a drone company to do that on a regular basis. That aside, I think people just want to stand to be right out of pride in the North stand redevelopment. The odd grumble has been minimal compared to all the positive and interesting talk and posts about the North stand redevelopment.