While I agree the vertical profile appears to have been drawn by a lunatic, I do not see the plate as 'unsafe'. Anyone who launches in there, seeing a terrain envelope of 2500' on the approach and 4000' just right of centreline and is not aware, prepared and briefed for the terrain on the chart....................? To then dive straight down towards (presumably?) 1120' with no apparent terrain awareness defies belief.
Of course there will be possible EGPWS issues, especially if you turn towards finals from MAP, but again, terrain in sight - expected, prepared and briefed? Not very different to FNC in that respect. I would not expect any GPWS warnings (apart from a possible 'Terrain') during a correctly flown inbound descent.
Again, surely each operator will have a specific brief for such a destination? Was there one for that 763?