it was always understood this was a mealymouthed "literally only grains that go directly and exclusively to an illegal settler's hands" sanction and anything for "legal" israelis (of course that applies to their defense force!) wouldn't be touched.
this isn't a dunk on anyone who knew what milibrand was doing, it's still a success that the UK government was forced to do a symbolic sanctions regime and the activists pushing sanctions haven't gone home or reduced pressure.