We were on the exact same page with our answers! We have done a few small group culinary excursions including local cuisine and local cooking classes that were fantastic.
I was able to make all of ours for our January 2023 cruise back in April. At the moment the ability to book has become inactive. For a short while could not even book specialty dining either. Sounds more like a system issue than anything else.
We usually book anytime dining for 90 minutes post sail away on port days and at 7 on sea days. They will ask when you arrive if you want to share or have a table for 2. They must note it against your room as we don’t normally get asked again and just get a table for 2.
So far we are missing 4 points. One each from March, April, June and now July. I think I am going to have to stop emailing and call. And wait on hold forever lol
According to the Celebrity site is was refurbished in January 2022. It has not been revolutionized which had been the plan prior to COVID. Will see what folks have to say as passengers just started boarding today.