> these late revelations make it even less likely to be a false flag

I don't think the timing of the announcements shifts the balance much against the possibility of the attack being a false flag.

The question is: If the real culprits weren't among the convenient "usual suspects", would the French authorities have the guts to name them? My guess is no. Because if you name a specific country as being involved, you also need to take action against it, or you risk appearing weak and meek in the eyes of your own citizens.

So, there may have been political pressure during the investigation and/or its interpretation to steer it towards a convenient outcome:

- "Iranian IP address" you said? It was them after all! I knew it! I knew it!

- But, sir!...

- I knew it!