Ha! Who knew such a thing existed! Can see why though - it’s not a hard job to do by hand but it takes ages.
ETA - it was absolutely delicious in our soup tonight. My sixteen year old (elder kitchen porter) made us a great soup with some bacon, a few white beans, a couple of old Parmesan rinds and the lovely leafy parts of the puntarelle. The head wasn’t overly cheap (about £4) but it was in great condition and we’ve had two great meals from it.