The "rent amount" includes costs the landlord pays now that will be gone under the nrst. That's what's being missed. Your myopia is preventing you from becoming informed.
It appears your idiocy is preventing you from understanding what "contract" means under the law.
The rent amount will not be changed by the NRST because the NRST cannot arbitrarily change the terms of any pre-existing contract.
The "rent amount" includes costs the landlord pays now that will be gone under the nrst. That's what's being missed. Your myopia is preventing you from becoming informed.What costs are those?