Yeah, but it's not just scoring; he is miles behind Makarov and Krutov in other aspects too, like Soviet MVP voting, all-star teams...
Internationally, Larionov never won the best forward award at the World Championships, like his linemates (Makarov 3 times, Krutov twice), and he was also less-frequently named to the WC all-star team (Makarov 8 times, Krutov 4, Larionov 2). Sure, Makarov makes many other Soviet forwards look mediocre too, so the comparison isn't all fair, but even Krutov was by all accounts clearly superior.
Vladimir Petrov did not do so well in the MVP voting either, but at least he was the top scorer both in the Soviet league and in the World Championships many times, outscoring his more heralded wingers Mikhailov and Kharlamov in the process. From what I've seen, Petrov was no slouch defensively either; I doubt that his and Larionov's roles were totally different, although I can accept that Larionov was more talented defensively.
Another Soviet center Vyacheslav Starshinov was also a lot more prolific scorer than Larionov, but I guess he is not going to get much consideration here, which I think might be right, as he was a star just before Soviet hockey really began to flourish. Who else is there? Shadrin, Bykov, Almetov, Zhluktov... some good players, but the best Soviet forwards were indeed mostly wingers.
But if someone can show that Larionov indeed was 'defense first center', when he played for CSKA/Soviet national team, then it would make some difference. But I don't think he was that.