Given how far the long haul heavies can roll on landing, is that wise or just slapdash graphics?
You would have to ask a heavy driver whether it's prudent, but it's clearly intentional - the document I linked to in my previous post includes the statement that "aircraft touch down 700m further along runway".
That's consistent with the displaced landing thresholds shown for the NW runway, though the current runway ends appear to have been given rather larger displacements, particularly 09L where the LDA appears to be reduced by about 800m to 2800m (it's currently just under 3600m).
A landing threshold displaced by 700m, all other things being equal, makes about 120' difference to the height of an aircraft at any point on a 3° ILS (though said document also makes a reference to "steeper landing approaches").