He's not, he is managed by Tartak who has a good relationship with the Tigers. He has Bird, Feledy, Makasini, Taupau-Moors, all 3 Fainus and Laulilii brothers all at the club. Most of those guys have signed or re-signed recently.
TDS is very close with Galvin but I dont think that will impact him leaving. The Api re-signing will play a bigger role. Richo has said that Tallyn loves the club and doesn't want to leave. The only issue is playing time.
Also, when Terrell May scored against the Eels he did the 'salute' celebration which I thought was a gesture towards Benji. Tallyn did the same celebration after he scored at Leichhardt, so he seems to get along with the group very well.