That is true, but that is covered in the very last sentence. Renting is significantly less volatile, assuming the contract is reasonable for both sides. Buying a house is a risk/reward analysis of the value compared to the price difference, positive or negative, to renting.

That is not to say this is the only thing to consider. Often people know where they want to live and what size of property/house they need, and for many people that is only achievable by buying.