Wow. Just wow.
You're the captain of a 100,000 ton cargo ship and your only focus is getting a signal for your smartphone. So, without knowing the waters you are in or going to, without the slightest inkling that maybe you should check, you just change course straight into catastrophe.
At this point, the whisky is an anecdote. It is literally irrelevant. The big issue is changing course without checking anything. That's like driving along a road, closing your eyes and then deciding when to take a left turn. I would have thought that naval school would have taught him the necessity of knowing where you're going when captaining a vessel of any kind, let alone an enormous cargo ship.
Who decided to give him command and how much experience did he have beforehand ? Was this his first command ? I cannot believe he was a seasoned captain. I would think that cargo companies prefer having their ships commanded by someone with experience, but this dude acted like a frat boy on party night.
Well, in any case, that'll be his last command. I don't feel sorry for him.