Well, that could mean anything. And the statement doesn't make the claim that anyone is actually *buying* a property, he's just saying some people are 'interested'.

So, for the sake of the argument, 10,000 people could have visited the Pearl to go and have a cup of coffee and look at the shops.

This would be more than the number of people visiting the Pearl in the past (because there was nothing to visit in the past) so, strictly speaking, the 'interest' in the Pearl, is 'unprecedented'.

Disingenuous, deceptive and misleading, sure. But not actually untrue.