Hmm...
I don't think the Dutch controllers would have given a clearance that meant absolutely that the accident crew would have had to intercept the GS from above, otherwise that should have come up before now.
On the other hand, at six miles the glideslope would be at about one thousand eight hundred feet, assuming a 3° slope and 300 feet per nautical mile, with Schiphol just slightly below sea level.
Does anyone know the exact phraseology of the approach clearance given by Schiphol to the accident crew?