eh, probably not. from 16ft - 3pt line, he shot about 41% for his career, and only took about 14.5% of his career FGA from that range
the kind of guy that would have been a more regular 3pt shooter is a guy like aldridge who lived in that farther range anyway. LMA took about 30% of his career FGA from outside 16 feet and was making 43% of his shots from 16ft thru the 3pt line
or perhaps more notably, KG. if KG and Duncan played in this era, i think KG almost certainly goes down as the better player. KG took over 31% of his FGA from outside 16ft and made over 45% of his shots from 16ft-3pt line. despite how much further from the paint KG played, he only shot 1% less from the field than Duncan did. the added value of the 3pt shot would have boosted his efficiency, on top of the already notable FT disparity. KG also the much more mobile defender, better handler, passer, etc.