Honestly, no. The chakra science especially. I must say I'm confused about what makes it sound fun to you (IC, as a way to spend time with Snowflake).
The thing is, if she doesn't have her own memories, she doesn't have her own personality, which would be tantamount to saying that she is not a person. If you wish to suggest to Snowflake that she claim this in the name of OPSEC, more power to you.
Edit: More generally, I'm confused about what this is meant to defend. Shadow clones having their creators' memories is the main thing everyone knows about the technique, since otherwise they wouldn't share the creators' skills or be able to pass as them, and would be strictly worse than elemental clones. Snowflake having her own memories is an effect of the Frozen Skein which it is useless for anyone to know about.
??? No, it doesn't.
Also, I named Mari. Why would you tell me what her name is or is not referencing?
Reasonable overall, with the caveat that I would say there are always things you can do at a given time, and often some of them are time-sensitive.