Those are the words that fit? I don’t know how else to answer this. It is a vocabulary exercise. If you know what the words mean, then the sentence makes perfect sense.
He “decried” (criticized) aggressive autograph seekers because he thought anyone who deserved their “adulation” (admiration–in other words, anyone who’s autographs they were seeking to get) should be treated **courteously/b.
I wonder if your issue is with “autograph”. That is when famous people sign something (like someone asks JK Rowling to autograph – or sign-- a copy of a Harry Potter book).
So if you use that example, he is arguing that JK Rowling deserves courtesy from those seeking autographs.