Not in my opinion. Certainly when I chose him, I was thinking of his first spell at the club rather than we he returned at the end of 2016 and the start of 2017.
When he left the first time, Cas agreed a fee with Salford and did well from the deal. He didn't do a Solomona and just walk out, nor did he do a Hardaker and disrupt the team before the most important game in the club's history (leaving us 150k out of pocket in the process).
When he left Cas in 2017, whilst there were rumours of unprofessionalism, he was also simply behind Gale and Roberts in the pecking order. with Tom Holmes there as cover too.
Rangi was controversial and certainly not a model professional RL player. But he didn't screw the club over like Solomona and Hardaker.
I think there's more of an argument to exclude Carney - but again, we got a good fee for him.