Me too, enjoyed it I mean, though I only understood a quarter of it!
Fundamentally it would be nice to know that in the event of one motor failing at V1 (worst case), that you would not become an unfortunate statistic, due to performance that failed to ensure clearance of the hard bits ahead.
As several non-airline bods have observed, it is often extremely difficult to obtain ANY obstacle data, thus making the calculation of required climb gradient impossible. However same authorities/aeronautical information providers were capable of surveying their airports in order to establish separation fom the hard bits on the way down, so even though they publish a required climb gradient on the way up, why could they not publish OEISIDS for different performing a/c?
Rather as there are different DAs/circling minima for different approach speeds, OEISIDs could be published for Cat A,B,C,or D V2 speeds, each giving a minimum required SE climb gradient.
I reserve the right to feel stupid depending on the ferocity of the replies. PL