The Karen levels of entitlement in this thread are so strong it should be declared a pandemic by the WHO. Yes, you are a paying customer but so is the poor sod trying to log in, how about you move your ass along if you're not actually playing and log out for a bit so others can have a go on the ride.
I want to give a shout out to the people making the argument that people afk dancing for 24 hours a day in Limsa is "playing" because they make the world feel alive. This is lovely and everything but don't then suggest that more servers is the answer, because then you get empty worlds if the player base drops. Merging servers in this game, if and when it happens, is going to be an absolute nightmare thanks to housing and they have to be absolutely confident before expanding servers that they won't have to merge for some time after, because that will cause a hot mess.
FFXIV is current in the middle of a quite unprecedented phenomenon, a huge surge in players 8 years into a games life span and during a content low point. Nobody could have predicted this and while it's always great to play as Captain Hindsight all SE are asking us to do, while taking full responsibility for it, is be a bit more thoughtful of others who want to log in, if you're actively playing, fine, if not, make way for someone who does want to play.
Communication? really? Yoshi P himself gave a public apology and a large and comprehensive explanation as to how this happened and why. He can't make you read it but it wasn't hard to find, all the Youtubers are talking about it, it has a post on the forums and it was posted on the loadestone and game launcher. How the hell did you miss it?
If you had read it then you would know most of your post has already been explained. In short, due to the economic impact of covid 19 they can't rush through servers because there is a global shortage of the physical components they need, they have tried to get them but can't. They will be adding servers but we will have to be patient as the global economy recovers.