This is an easy one. Hold my beer:
-This country was founded on private property rights. What is being described in the article amounts to a taking of some of those rights from the current property holders. Courts of law do not truck with such takings.
-Assuming those who received the letter and may be affected are fee holders (i.e., they own their land and the improvements thereupon) and that their current use of that land and improvements constitutes a legal, conforming use thereof, a change in zoning like that described then usually makes the land in question and its use a "Legal, non-conforming use". That means the owner (or a lessee of that land and/or improvements) can continue to use the property under the zoning guidelines in place at the time the property was first put into use. (For example, if the land is zoned for retail use and the owner has a retail pharmacy on the site, that is a legal, conforming use so long as the building conforms to the zoning requirements in place at the time the improvements were constructed. If the zoning is later changed to, say, residential, that pharmacy may continue to operate as such, until such time as the improvements are demolished, after which time the land must be then used in a manner consistent with current zoning regulations.)
-The concept of a legal, non-conforming use after a zoning change is widely understood in this country and courts of law see any restriction based on change of zoning (e.g., telling our pharmacy owner he must now use his property for residential) as a taking of property rights, and such cases are almost always won by the property holder.
-All those on the Right complaining about 'too much regulation' quickly become fans of concepts like zoning and legal non-conforming use of land when someone shows up and gets in their face and tries to take the ownership rights of their land...
El Rey Dotardo II wants to make a deal fast. Why? He is such a poor negotiator that searching for solutions with the party on the other side of the table is beyond his capabilities, which amount to bluster, bullying and BS. The TACO syndrome is evident in his attempts at negotiating because he just wants to move onto the next sale, like anyone else whose life is built around transactions.
Hey, Rey, want to make a fast deal? The Vlad the wardog that your patience is at an end, and that to protect yourself from criticism you are authorizing a big delivery of military equipment and hardware to Ukraine for their use in whatever manner they see fit. And you will continue to make such deliveries as necessary until Russia comes to the negotiating table in a serious manner. Deliver the first batch, make a show of it and see what happens. Vlad will come around ...