Perhaps with regard to the Fermi incident. If I recall correctly, in that instance, JHH suggested that Fermi was on track to ship months sooner than it actually did. If I were an investor, yes, I would be upset that the company failed to meet the target and that I was induced into buying/keeping my shares.
With regard to the Drive PX 2, that's simply not the case, and folks here have blown that demonstration out of context. The demonstration wasn't about Pascal, about Geforce, about the status or availability of Pascal as dGPUs. It was about the Drive PX 2, what it would look like, what it would be capable of when released, and its release date. If it turns out that the Drive PX 2 fails to meet JHH's descriptions, let's revisit this argument much later this year.
But let's not pretend that anything JHH said during that demonstration had any bearing on Pascal's availability in Geforce products.
Again, we know so little about Pascal's availability beyond "2016." Indeed, most of what we know (or think we know) about Pascal's availability can only be inferred by tangential news (i.e. the availability of HBM2 and/or GDDR5X).