It shows nothing of the sort. Nobody disputes that the last Lubavitcher Rebbe had a very wide reaching influence. This itself is reason enough for Gedolai Yisroel to visit / respond.
How often did the Mishneh Halachos visit leaders of Kefira movements (and write Zatzal after their name)? Did the Gerrer Rebbe visit the head of Reform of America because of his wide influence? Or how often did the Minchas Yitzchak write “הגה”צ” on leaders of Kefira movements, and quote him in his Shu”t?