The former Parramatta great revealed in his autobiography last year he'd lost thousands of dollars gambling on poker machines, before managing to address his addiction with the help of his wife Bonnie.
The 33-year-old was surprised to hear that Canterbury stood down their star player after he informed club officials he was struggling to deal with issues in his private life.
However, he said the 23-year-old is doing the right thing getting away from spotlight while he sorts his life out.
"It's nice to see Benny realises he has an issue and he's getting it sorted," Hindmarsh said.
"He obviously realises he needs help. It's not social anymore and it's become a bit of an addiction for him."
Hindmarsh said he found it easier to overcome his addiction when he was finally forced to make the people closest to him aware of the situation.
"You get into a bit of a rut. I spent a long time telling myself I didn't have an issue," he said.
"But once I started telling people it made it a lot easier.
"There is not too much advice I can give Benny really. You just have to be willing to change. And this is the first step to doing that.
"He has spoken to the people he needs to speak to and he's making a change."
Hindmarsh said he wasn't aware of a huge gambling problem among NRL players and it was unfair to single them out.
"It's not just footy players it's society," he said.
"There's a lot of players who have a punt socially and then walk away.
"Most people do. Some can stick a 20 or a 50 in a machine and then walk away.
"And there are some that can't."