No, it was not. I've actually explained this to you before
in a different thread. As I said there, the report was not from the blog you think was the source. It's actually from
www.computerbase.de, a large and long-running German IT site. Their
original report states:
They're saying here that Lisa Su "hinted" Zen APUs wouldn't come out before 2018. There's no direct quote, so I agree we can't take that conclusion as definitive. But it can't be entirely dismissed either. At the very least, contrary to your claims, it's not an uncredited report. It's a respectable source under Volker Risska's byline (he's the Platform Architecture editorial director for ComputerBase).
I never said it mentioned the Pro. I was addressing your other claim that the AMD presentation was exclusively about H1 2017. Here's another slide from the same deck:
It clearly says that Zen desktop will be H1 2017, and Zen notebook version in H2 2017. So the presentation isn't solely for H1, and anything in it about a Zen APU could similarly be after that timeframe.
This doesn't make sense. Scorpio is slated to go on sale in Q417, so it will need to start assembly in mid Q317. (Just as Xbox One and PS4 started production in late summer 2013, and PS4Pro started production late this summer.) If AMD don't have a Zen APU by mid Q317, Scorpio would have to be delayed.
I don't believe it's impossible for Scorpio to contain Zen, but I think it's naive to say it's a slamdunk certainty.