Gawd, what a nightmare
I would absolutely hate that. We like to eat when we are ready and not be told when. If we've been out all day we might have a rest and not eat to later but then again we might be starving one night and eat early. We are both sociable on holiday but under our own terms (if you know what I mean)
The twice we've been AI was to Mexico and Margarita - both were many years ago and then there were no sittings and you could sit on your own, although I now understand that both hotels now have 2 sittings for dinner and you are allocated one.