Kikau had a ton of opportunities the first half of the season & didn't make the most of them. If he played well, he would of stayed there. Whether you agree with how he was used or not, he made crucial errors 4 or 5 games in a row & any player would of been given a spell in reserve grade after that.
Tuamalolo had a very similar start to first grade life. He was sent back to reserve grade for a while (despite his obvious potential) & it did him absolutely no harm at all. By the looks of it, the same is happening with Kikau.
FWIW i'd have him in the starting line up Rnd 1, I just don't agree he was harshly dealt with last year.