Because language regarding grandfathered products specifies "in the United States"—no Cuban cigars will be grandfathered. As such, if the embargo were to end, Cuban cigars would have to apply as new products and would be subject to pre-approval before they could be sold.
There is no reason to believe this would happen and it would likely cause a lawsuit.
Perhaps, but not on a large scale. It might push some consumers who enjoyed non-Cuban limited editions to look into Cuban cigars. However, for a typical consumer who walks into a store to buy a few cigars at a time; this likely wouldn't change buying habits.
Last Updated: May 24, 2019.