Fair points, I can see how you'd come about your conclusions. That being said, you were coming off as some know-it-all and jumping down his throat without really needing too. Fact is, neither you nor I were in the airplane with him and factual statements about his teaching style can not be made. You can make assumptions until you're blue in the face, but factual statements, no. Now, I am far from the forum police, but it seems like you might get a bit more of a constructive discussion if you slow your roll a bit.
Looking back on my former instructors, I can definitely see those who were there to milk the clock and those who really wanted to teach. Despite who it was, it was not uncommon to get to .5 before you even took off, sometimes even higher depending on the traffic flow, the foreign student who needs his clearance to podunk OK repeated 6 times and tower not allowing departures until the pilot on their first solo finally found the airport to land. Then when we'd finally taxi out, we were the 11th 152/172 in line to depart. Personally, I finally got tired of all of that and scheduled my flights at 6am when no one else wanted to fly. To say that I wasn't learning during that time though would be false. Anytime the aircraft is running, there is learning going on whether intentional or not.