No idea... 15 overall; 7 with AI?
Not sure what point u r trying to make and what bearing it would have on the last lap incident...
Well, I wouldn't think I'd have to explain the relevancy (bearing), but yet again, it would seem this has to be spelled out.
It is relevant because as you alluded, these professional racers employ their experience as well as reactions to the race as it unfolds (the bearing part you seek to understand).
There were 4 passes exactly at the spot (turn13) all for passes either involved Iannone (and Dovi) or he may have had a front row seat to watch the passes.
Lap 1: Iannone passed Lorenzo.
Lap 2: Marquez passed Dovi (which means Iannone had to have seen it).
Lap 7: Iannone passed Dovi, then Dovi retook on the inside.
Lap 8: Maverick passes BOTH Ducatis of Iannone and Dovi.
Think about that, 4 passes at that very spot, so Iannone had to have inputted that into his memory for the last lap. And I'll add Dovi was leaving space, the 'door open' (it's why he was passed at this spot before). In fact Dovi had been passed there 3 times, once by Marquez, by Iannone, and Maverick.
Relevance: Iannone, like most experienced racers (and I reject he is stupid) would have placed that in the back of his mind. It was a point on the track that presented a very real passing opportunity, even a 'double passing' opportunity, as Viñalez demonstrated. He also is particularly acutely aware of Rossi's propensities, having watched him and possibly emulated him throughout the years. He may have figured (right or wrong) that Rossi might attempt a Jerez 05 on the very space he had witness Ducatis being passed multiple times during the race. It's not unreasonable this thought was processed. Other than you on a hunch disbelieving Iannone, the explanation he offered makes sense.