Remember that when Approach radar are vectoring the aircraft towards the ILS, the aircraft is in the initial approach phase - the vectors are replacing the procedure turn, base turn or other procedure designed for the initial phase
To exactly the same extent as the "direct to KELON" clearance replaces the arrival segment.
If you believe that "cleared ILS" permits descent to the intermediate altitude, why do you not believe that the "direct to KELON" permits descent in accordance with the arrival?