I don't think "the forum" as a whole should take an official view - it's a matter which
in the realm of trains, appropriate service and usage isn't likely to make any sort of make-or-break difference, especially as the new law also applies to bus stations and buses, and even to private cars if I wish to offer my customers a lift as I read it.
I did comment on some aspects personally
here and
here which will give you a flavour of my own view.
One of the battles I fought hardest was to get my son to give up smoking. One of the biggest pointers that I was able to give him to push the case was that his grandfather - a lovely man - passed away messily and many years too early from the effects of smoking.