The point I was making was that, even if the crew were flying a non-precision approach involving a descent at the maximum rate allowed for in the procedure construction in order to level at MDA/H ("dive and drive"), such procedures are not permitted at Birmingham as they will involve a descent below the equivalent ILS Glideslope.
600 ft in an A310 over Honiley must have looked....interesting. Hope that was height, not altitude!
Well done to that ATC controller for saving a potential disaster.