I agree to some extent, but advertising of any vices in such excess is obviously going to be harmful. Plus it's not like it benefits the game in any way, what exactly has all this extra money done the NHL has been earning done for the average fan at home? Has it lowered prices of tickets, jerseys, food at the arenas? Ofc not, it has just made billionaire owners slightly more billionaireish.
Even though some people will say alcohol and fast food always had ads, it was never THIS much to the point where while watching the game you'd have flashing ads telling you to eat/drink and the announcers encouraging you to eat/drink.
How far off are we from adult websites advertising and why stop there, why not just advertise hard drugs, it's the consumers fault for consuming it.
Ultimately, the average person is indeed as stupid as your post suggests and not only that, but any vice can hook extremely smart/capable people as well. And the real cost of any addiction isn't the addict but everyone around them who has to suffer from it. Should the league be creating thousands if not tens of thousands of extra addicts so their owners can get SLIGHTLY richer? If so, again why stop there, let's advertise adult websites and hard drugs, lots and lots of money there as well.
And again what is it all for? If there was some tangible benefit, ok we talk reward:cost ratio, but there is ZERO reward for basically everyone. Just Billionaire Owner Bob can now say his networth is 3.45 billion and not just a paltry pathetic 3.43 billion from the extra advertising money.