I can't remember if I ever did an investigate dialogue with Matsuo on Noveria. I know for sure I haven't done one after getting the garage pass from Anoleus by ratting out Opold. (I do remember her getting all mad when I helped Gianna arrest Anoleus.) Anyway, here is her dialogue with Anoleus still in charge of Noveria.
[snip]
Wow. I have zero memory of ANY of that. It's so humbling. You think you've seen everything ME has to offer and then you realize there's all this out there that you never even heard of. I am humbled, shamed, and excited to play again.
I think, however, that I will alter my Shepard's appearance a little this time around. I cannot help but notice that almost every Shepard I have seen... has the same hair cut. I feel so unoriginal when so many Shepards look like similar to mine. Maybe I'll go with the 'Sarge' haircut, despite its butchering in ME3... hm.
Since Javik was underground when this happens not sure why he has memories of it.
Let's not even get started on why his memories are being viewed from a third-person perspective. 
Actually this was one of my biggest peeves about Kasumi's graybox scene. His memories are all viewed from a third person cinematic camera for dramatic effect instead of being, you know, from his eyes. Considering that all his memories should be from his perspective... I question why she'd want them. She's only going to be seeing herself, not him. Kinky.