My gf's bro is a massive Eels fan and he kinda put it into perspective for me last night. Said Fui hasn't played most of this year, and was only covering Terepo and someone else. They are back now, and Fui hasn't really set the world on fire so he has to make way for the people he was covering for.
The Eels cannot afford another loss if they want to make the 8, so if Arthur feels Fui is not in his top 17 then it would be stupid of him to play him. The circumstances are unfortunate, but I can absolutely understand why he was dropped. Fui shouldn't be acting like a spoilt brat, but rather take it on the chin and go and sit with the Blue and Gold army during the game or something.