When they enacted rule sets they specified that products that were invented, marketed and sold before date 'x' (I don't recall the exact date but it was somewhere 2008-2012) was 'grandfathered' and anything 'new' that was invented, marketed and sold after that date had to be approved by a PMTA process. At the time any new products sold after date 'y' had to be approved.
The date ('y') for the enactment has changed a number of times over the years. While it is 2022 now, this all started in 2012-2014 time frame with the
original date 'y' being in that time frame. Obviously it has been pushed out a number of times.
There have been a number of 'drop dead' dates where the vaping public expected all vaping devices and related stuff to be not purchasable. While these dates have come and gone, many of us 'stock piled' a lifetime of gear and supplies in preparation of the upcoming ban.
It would appear that 'juul' is just the first target.
The 'hope' is that for those that don't have a stock pile, that at least 1 or more products will get approved that would be available and open the door to the possibility that other companies could 'leverage' the approved product(s) and simply denote the differences of their product and the approved one(s), thereby possibly simplifying the process and reducing costs.
This site and likely others have 100's of threads on the entire sorted affair.
g.