This form of question always reminds me of an old "joke" along the lines of "If you are traveling down the road in a wire canoe at 100 miles an hour, how many pancakes does it take to cover a doghouse?"
Whether or not it's a good idea to register a domain name is not determined by the status of a trademark registration application in some unidentified jurisdiction. It might be, it might not be.
Maybe a better analogy is asking whether a dog with brown fur has rabies. A dog with brown fur might have rabies or it might not have rabies. Whether it has brown fur doesn't answer that question.