See, the thing is, Rowling makes a lot of "Freudian slips" that betray what she really thinks vs what she wants to think and wants us to think (in my opinion) and so I don't think it was fully 100% conscious, necessarily but I think on some level she's probably aware of it.

The other thing that irritates me about Blaise's mother is that it's apparently simply not possible for a Slytherin to have a non-sinister history, except for Slughorn, who screams "Token" like a very loudly screaming thing and comes off like a pedo anyways (I call him Humbert Slugbert).