Why suspend only the ATCO?
If they are suspending the ATCO, why not suspend the pilots of JetBlue that flowed the instructions ('cleared for takeoff') knowing that it was not the ATCO speaking. If this is an 'incident' that worth the job of the ATCO it sure worth the job of the Jetblue pilots. It is obvious the pilots knew they were not talking to the ATCO.
What do you think?