"they're banning nicotine products"
If I am not mistaken, they are banning to sale of tobacco, not nicotine:
"[..]provision prohibiting the sale of tobacco to people born on or after 1 January 2009[..]"
"I also really doubt that they will legalise weed and then say "but of course you're not allowed to smoke it, edibles only"."
I mean, there is still vaporization, so it wouldn't be edibles only?