Some of those things are legal in certain places and circumstances. Coke isn't really either, ever. Especially for an officer of several public companies, some of which have big government contracts.
If the CEO of Boeing or Raytheon was acting this way, would we be acting differently?
To be clear, the WSJ article linked here states that people are worried he has a problem.
Using before going on stage for work is not recreational, it's a problem.