If you're looking for a knife to punch holes into a 55-gallon drum with, the Glock M78 field knife is for you. If you want to cut things, not so much.
Going along with what I said before, it may be as much a sharp punch as a sharp prybar.
Giving the tool its due, I presume that is the sort of thing that Glock expects Austrian soldiers (or any soldier for that matter) to use it for. Punch holes in thin metal, pry a door from its hinges, pry open a crate.
I would not want to be trying to cut myself free from a snagged parachute with the thing though.
In keeping with the old saying "God made man, Sam Colt made men equal", I do not advocate the knife as a weapon, especially a defensive weapon. However, given its obvious bayonet lineage, I suspect the Glock Field knife would be a good stabbing weapon...but there again, cutting, not so much.