I don't believe the club bear any responsibility in this instance at all.
Yes there is such a thing as risk for young men that suddenly gain fame and fortune at a very young age and are exposed to temptations that they may well be ill equipped to deal with.
But this bloke is someone that is a life time since being a Warrior, a full grown ass man.
Presumably he has had a very good life in terms of opportunities and privilege.
You cannot make employers responsible for the futures of their ex employees after ten years and more.
I don't even think it is a bad look for the Warriors or the sport, these are men making bad decisions on their own time. Happens to every company - ex workers go off and screw up in one fashion or another.