Nautilus passive autoattack snare overrides morganas shield

in a 20minute game i confirmed (by dying 6xs in a row) that naut's grab (anchor hits morg shield and STOPS confirmed to work correctly 2-5x). BUT if you let him pull you towards him and cast before his auto attack goes off you will shield, his auto attack motion will go off, and you will still be snared by his passive. slightly annoying would like to see morgs shield fixed in this regards. (confirmed 5xs in row)