My apologies for being a bit dumb in here but I did not comprehend what you mean to say. Can you please elaborate the point you are trying to convey?
Okay, again: it's a good theory, i guess. But what if there's an explanation that is more simple.
When someone refers to other person technique as it were from another person, i think it's because it has more impact coming from that one. Example:
- Minato's jutsu, transportation. But it's not his. It's originally from Tobirama.
- Tsunade's Byaguko seal. We don't know if it's originally from Mito. But she had it.
- Naruto's Kagebunshi. Of course it's not his, but is the one who use it even just for the sake of it.
So, we can't take "Kushina's chains" as a hint, i think.