The debate about where the Gers should play this season split the country – and, in Duffy's case, the Clyde boardroom.
The Bully Wee voted to send the Ibrox side to the bottom tier rather than the First Division after their application to rejoin the SPL was rejected.
The Cumbernauld club will become the last team to face Rangers in the opening round of fixtures and Duffy's position has not altered over the course of time.
He said: "Rangers are an exception to the circumstances and the rule. You only have to look at the crowds to see that.
"They had nearly 50,000 at Ibrox on Saturday to watch them against Queen's Park. They are an exception to the rule.
"There could have been other punishments and other ways of dealing with it.
"In terms of where they were placed, personally speaking I felt they should have been placed in the First Division. It was a personal view.
"Our club decided it should be the Third Division and, as a board member, I agreed with the board.
"You can't stand on your own. You put your proposal to the club and the rest of the board thought that Rangers should play in the Third Division."
While the bitter feud between Rangers and those in the Hampden corridors of power at the SPL and SFA rumbles on as the fall-out from the most heated summer in Scottish football history continues, those at Ibrox have been warmly welcomed into the Scottish Football League this season.
McCoist has often spoken about the heartfelt greetings he and his players and staff have received at Third Division grounds across the country.
Broadwood will be their next port of call this weekend and Duffy has praised the Ibrox club for the way they have taken to life in Scottish football's lowest echelon.
He said: "Rangers accepted it with good grace. That is something that Ally McCoist and their supporters have got to be commended for.
"They stated that they felt they should be in the Third Division and work their way through the leagues and all credit to them for that.
"The Third Division is certainly more in the spotlight than ever before. The crowds, as will happen at Broadwood at the weekend, have been huge and the atmosphere will be great.
"There is no doubt it brings a great amount of excitement to the league, but I was looking at the bigger picture and the future of Scottish football and I think it would have been better for them to be in a higher divison."