I don't think it's that easily dismissed.
One driving issue is money availability, both cash and credit. Homes purchased with cash are at an all time high. That's largely fueled by the fast appreciation of home values; people are selling their homes, paying the (now comparatively small) mortgages, and then buying a replacement property with the left over cash. That cycle will stop as appreciation slows. It's already slowing. The ratio of cash sales will begin to drop.
At the same time, credit is going to tighten. We could see a scenario where the economy is so inflated, the fed has no choice but to dramatically adjust rates. It will not surprise me to see 8% to 10% borrowing rates within a year.
I also think we'll see an employment correction as the economy worsens. Which, in turn, leads to foreclosures and excess supply. That spec starter home that would have been $175K five years ago, which sold for $275K this year, could be $100K in foreclosure.
It happened fast in 2007/2008. Easy money drove that one. No reason we can't see a repeat, since easy money is driving this one, and the easy money is going to go away.
I don't know if you have tried getting a mortgage recently, but as someone who has gotten two in the last three years I can tell you that there is no "easy money." With an 800+ credit score, 15 years employment, zero debt, and 70,000 down just qualifying for a 200,000 mortgage was a very different experience than qualifying for a mortgage back in 2007. There was zero income verification back then, people were getting $500,000 mortgages with an unverified $100,000 annual income when in reality that income was closer to $35,000.
The only "easy money" in today's market is from equity in other properties owned/sold and in reality that isn't what I would consider easy money. Easy money is referencing money borrowed, which is very strictly controlled at current time.
Our first home my wife ended up the only one on the loan as I was out of the country and she qualified for $125,000 mortgage with zero down, zero credit, and an 11 dollar an hour job while a full time student. That isn't happening today.