He also said, “ Naruto is just a pawn to stimulate Sasuke” Remember he said he would make Sasuke to fight him in the Kage Summit Arc? I think this is the extent of his understanding about the bond between Sasuke and Naruto. And he didn’t fail to mention about Sasuke’s betrayal too. Here, Obito was questioning about Naruto’s purpose for fighting in this war.
“ Both the people of the Village and Sasuke betrayed you…” And Comrades as in… People who stands and fight with Naruto showing their full support. I guess this has to do with others’ perception about Naruto and his Comrades (?).