Strange take considering Arthars was dropped for his poor defensive reads and missed tackles. To'a isn't a great defender by any means, but you really must not have been watching Arthars much to believe he is a better defender.
They played a similar amount of games this year and To'a had 20+ more tackle breaks, more try involvements (despite Arthars being a winger) and essentially averaged the same amount of running metres which involves kick return metres for Arthars. To'a also averaged more post contact metres. All while Arthars was playing for a top 4 team and To'a a non-finals team.
Its a bad pattern our fans have, they hate on our players more than they deserve and rate some opposition players more than they deserve. Then we wonder why our players look good once they leave and players that people thought looked good at other clubs all of a sudden look bad at ours.