I think you left out the rest of the story.
A pilot program, currently only on one ship.
On casual nights the table cloths may be gone but they return on elegant nights and I think will provide a refreshing contrast.
The steakhouses on the newest Carnival ships don't have tablecloths and people pay $35pp for that privilege.
I don't know that I care but will make up my mind after I experience it. Might need more than one cruise, too.