No, it's not for several reasons.

They solved the case only because they were negatively tagged and had two active flags above their threads. They were fine with confiscating the player's money before they got tagged and the flags got supported by DT members. The solved case isn't the only scam accusation against this casino. There were 3 the last time I checked. In a different case, they locked a player's account and took his money. After the player complained on this forum and an arbitrator site (can't remember if it was AskGamblers or Casino Guru), their reply was they will investigate why the player was banned. What does that mean? It means they will start an investigation to see why the player was banned in the first place. The normal workflow is to conduct an investigation first, come to a decision, and undertake certain actions. The "experts" from Trustdice have their own take on this. They confiscate your money, and maybe in the future they will check what happened and what you did wrong.

Let me tell you another thing, maybe you will then better understand why they don't want to participate in the forum's scam accusation threads.

One of those arbitration sites (AskGamblers or Casino Guru) doesn't investigate cases that involve sportsbooks. TrustDice has a sportsbook. Since they won't be investigated by the arbitrator, they are free to make their own decisions. The other arbitration site doesn't investigate breeches of terms and service. Are you getting a clearer picture? You confiscate someone's money with silly accusations that they were involved in late betting (proven to be false and a lie in the resolved thread you linked to), you mention breeches of terms and service agreements and arbitrators won't look into the case. Since they have decided not to respond to scam accusation threads on the forum, there is very little that their victims can do.