Yeah its BS alright.. these govt funded “Studies” always manage to come out right after a ban is passed.. means nothing because the sole purpose of the “study” is to simply say “See we were right govt knows best”
Your best bet is to ignore these kind of silly fake studies.
I hate these so-called studies. The results presume that all of these people that had MI’s were regular bar patrons that went to places that allowed smoking. And now these barflys are not having as many heart attacks. That is simply not provable or even credible. How do prove a negative? You can’t demostrate that these people wouldn’t have had a heart attack anyway.