Topslide has, again, hit the point.
We have a normal PLOG minimum fuel, D+E or CMR, of 2100kgs (the absolute minimum permitted is 2000kgs) even if the alternate is the parallel runway 2 miles away ( AMS ). The minimum fuel the computer will program for an alternate is 1100kgs: that's enough for an alternate 100nms away.
So we have at least 500kgs fat in that figure straight away plus we have 5% contingency, at least another 200kgs, hence at GS we will have at least 2800kgs without taking any extra on top of PLOG, hardly "cutting it to the bone" or " being close to the edge"!!
Some of the comments border on tabloid journalism at it's finest.