I don't think he's using it as an excuse.Personally I think using mental health as an excuse is weak. Just own the drug use, majority of people out there are on it.
I work in and have suffered with mental health for quite a while now.
It is absolutely something many young men who are struggling mentally do.
They hide in partying, drugs and sex. They don't want to stop or think about what they are doing because then they will feel bad again. It's destructive and it's dangerous and I hope Baz is really working on it.