I think this was obvious to those of us who have played for years though. They give us this little story in the patches to keep us distracted until the expansion and then do something different.
They give lots of information, so if you think that they don't, you most likely are unaware of where that information is. When you launch the game, you can see the lodestone news but you can also take a look at it here
https://na.finalfantasyxiv.com/lodestone/news/
There will usually be 2 live letters before each patch. The first one is vague and the second one is a lot more detailed and provides footage and gameplay from Yoshi-P. Most of these are in Japanese, but you can find translations on the FFXIV reddit discord or in stream chats. These streams are announced on the lodestone and in the game when they are beginning. You can watch the summaries by content creators if you don't have time for it.
After it, they publish a dedicated website for the patch with videos and the media they showed in the live letter
https://sqex.to/uuTTH
Lots of interviews are given to websites in this time, some of them in Japanese, but we usually translate them to find any interesting information. My advice to find out about these is to subscribe to some youtube content creators or find posts about the interviews on reddit.
At special game events, Yoshi-P tries to go there and do 20-30 interviews, but there haven't been as many of these events because of covid.