The Wellness policy was instituted after Eddie Guerrero passed away, and it does have some teeth. Wellness issues is what led to Kurt Angle’s dismissal, and he was a bigger star than Benoit.
Steroids are a weird thing. Clearly any use of them for aesthetic reasons is an abuse, in my judgment. That’s not to say there isn’t a smart way of using the drugs for that reason, though.
If an optimal dosage of the drugs is 2 pills every 5 days, for example (just a reference point), the problem isn’t the wise use of those drugs, but the misuse of them. There is a mentality that if 2 pills every 5 days is good, 5 pills every 5 days is better. And it gets worse from there. That’s where the problem is.
Benoit wasn’t pushed for his physique, but for his talent. There’s no reason to think a more stringent policy would have averted this atrocity.