I'd be objecting to this line greatly if it weren't for the "mostly" part. She has the collective mind of SV in her, yes.
Now, I'm just slightly objecting to it.
From time to time, we get unusual ideas due to "brain damage", like questioning Homura's choice of home decor... or wanting to find out the secret to Mami's drills... or, godforbid, the secret to Homura's silky hair.
That is exactly why I said "mostly", yes.