I think both sides have some valid points.
If you use a slow paced offense, fewer possessions will be played and that will result in a low scoring game. This may be useful against a stronger opponent in regular season, where points differential play a role on the standings.
That said, I agree that playing patient against a strong defensive team (especially if your offensive flow is lower than his defense), will get you to many last second prayer shots, with a REALLY bad accuracy. I don't think it will generate many turnovers, but you will have low efficiency. I have seen this happen many times and I wouldn't advise anyone doing this.
At last, this is my personal experience, which, by default, is biased and not to be taken as a definitive word.