Yes, that's the concern. You don't want this being imposed before a sale.
It's important to have standards, and one of the benefits of building a lot of new product is that it's, of course, going to meet the highest standard. However, the person selling should have the choice of whether they sell it as is or not, and they shouldn't be forced to have to do that upgrade before they sell it because many of them wouldn't be able to afford to do that.