No, you are the only one to get attacked on purpose in that chapter.
Thanok only sends troops, but never gets attacked himself.
Clever computer knows that if it destroys player´s base it wins. Evil computer. Just like all the "I know your base is there and right now there is nothing from the creator preventing me from acting like it!"
Actually, if I destroy Thanok´s base myself, can I use it without that new base being attacked?