There have always been some dining discounts for AP holders.
I think the current discount list is more expansive than most years..and includes some QS discounts (that I've not seen before) and currently 30% at some Signatures.
In past years, TIW (20% on 95% of TS food and drink) was always a no-brainer ... now, it mostly only makes sense if you purchase enough alcohol.
But, buyer beware, discounts can and do change without notice (like the time they removed the 20% merchandise discount from the top tier of AP's)