The article doesn’t seem to factor in the value of houses for homeowners - I think a lot of people are counting on the appreciation of their house values for retirement.
I think that is a pretty risky strategy, unless you are planning to take in boarders to make ends meet or planning to move to a less expensive country with the proceeds. There is no guarantee house prices will rise and even if they did, you have to live somewhere and would be affected by that same inflation.