
The base might be "wrong", according to our current percieved knowledge, but everything else is
so right, I suspect the base might just be an anomaly and we should not rule Mtarfa out in cases like this.
They were very experimental, starting off with Mdina-like designs (with a twist), but soon took off in different directions.
I don't think I could list and sell it as "definitely" Mtarfa, I have no proof, but if it was sitting here in my home, it would be with the Mtarfa and I'd call it Mtarfa.