New Zealand Property Investors Federation boss Andrew King has said his organisation did not condone Fong's advice and its members would never take advantage of vulnerable people.
Macalister said he also did not condone Fong's advice and had not heard of investors operating in packs.
He would never advise people to use false names but doubted Fong had encouraged this and felt his comments had probably been exaggerated.
"Ron is very experienced and actually pretty respected out there. I know he's feeling pretty gutted about what's happened."
However, some of the other "Ds" tactics around targeting properties that were likely to sell cheaply were "pretty standard stuff - it's not news".
"Property investors have been doing that forever. They're trying to find the best price to buy and often the people who have the most urgency to sell are the ones who are likely to sell for the lowest price."
Asked if that included "dummies", he said that was probably the wrong word.
"How he said it and what he meant, I'm not defending him but it may have got lost a little bit just the way he presented it.
"Markets are made up of willing buyers and willing sellers. If you can buy a share from someone who is selling it and they don't necessarily put the right price on it, you'd buy that I suggest."
Macalister said he had personally bought property in mortgagee sales.
"If someone's got themselves into financial difficulty and are forced to sell they will accept whatever price they think is acceptable.
"Because [the banks] want their money back you can't put your finger on the purchaser and say they're exploiting that situation."
Labour's consumer affairs spokesman Michael Wood said it was concerning that industry bodies were disassociating themselves from Fong due to reputational damage, "but are unwilling to condemn the practices that have actually been unearthed".
"To be clear, the video shows us evidence of people being coached to use false names and fake bids, to hunt in packs, and to seek out the most vulnerable people to employ these practices on.
"Labour condemns these practices without reservation and has initiated a Commerce Commission investigation to determine if they are illegal. It is astonishing that neither the Government, or key industry players will step forward and also condemn these practices."
Approached yesterday about Macalister's comments, King said the Fong episode had been "devastating" and he preferred not to comment.