Does that sort of tactic sound like something that anyone who is acting in good faith would do?
Furthermore, with it being nearly certain that The MET, which was recently purchased by Atrium Healthcare, is indeed the site where Atlanta would like to build another hospital (aka "Project Robin"), this property is ideally situated to serve many complementary purposes, including as housing for future hospital personnel who want to walk to work, as well as for shopping and dining opportunities for hospital staff and visitors.
The sky is the limit for this property. And while the owner is quick to state that the property requires environmental remediation, he won't share the details, which means that it's probably not actually bad. Besides, even if the contamination were severe, which it almost certainly isn't, there are many ways to reclaim such properties at little or no cost to developers.