The upshot will be almost unnoticeable for most. Instead of a stack of charts, printed who knows how long ago, and sitting on a shelf for how many months??? (years?), you buy charts that are updated as of when they are bought (printed). When I used to buy NOAA charts, I always had to sit down and update them before use- PITA!!
Plus most cruisers on the east coast, Florida (both coasts) and Bahamas are buying chartbooks anyway, which won't change. Sadly there isn't one for the gulf coast, west of Florida. And in the Bahamas, the Explorer chart books are THE bible.
Personally, in the last 5 years, and some 10,000 miles of cruising, I have not bought a single paper chart, printed by NOAA. In fact, I can't even remember the last time I walked in and bought a single chart.
Chartbooks? Yes- I had 7 or 8 of those aboard. And also electronic charts. I also had (have) several POD charts, which were beautifully done. Quallity is excellent.
It's a tempest in a teapot - NOAA isn't stopping production of charts- just the printing of them. No big deal.