You can't do Island Sanctuary on a different data center, along with many other parts of gameplay. Its not a communication issue, its a gameplay issue. If friends come to see you from a other DC; then their gameplay is stripped as well. A lot of players in my space don't just log into the game to sit around and talk, and maybe this is why its confusing some people in here as to why I am not against the restrictions. DC travel almost felt like it was forcing all of the raiders to be friends with raiders on Aether, and so on. I was in a community where everyone did all sorts of different things. Gathering, crafting, ultimate raiding, house decorators, roleplaying, and whatever else you can think of. It was nice being in a space where everyone can do talk and play the game their own way. However, DC travel separated us from that social circle.
It might be confusing, but a lot of friendships were just formed from people visiting the FC house and watching people decorate, craft, etc while they wait for their PFs to fill. People still talked to each other in discord when travel was implemented, and we try to meet up a lot, but it felt extremely hollow and tedious. No one could see each other in the game to do fun little things to fill for their wait times without sacrificing some of their enjoyment. It was the "hanging out" part that got thrashed. FC buffs were becoming useless, because people started to not visit the house anymore because they just had to be on Aether or somewhere else. The traveling was tedious and they didn't want to keep dealing with it. Its hard to explain it, but Endwalker has lead people in these groups to become more distant, and some ended up quitting.
I really don't want the "you guys have discord, so you guys are fine" pinned against me, because I could say that you all can RP on discord too and be fine without going to a venue. I don't want your enjoyable experiences to be taken away from any of you either, but it really did hurt my social circle a lot, and I wish there was a better solution to this problem. I just don't want people like myself and my friends to be dismissed as "anti-social no lifes" because we were upset that we had to separate ourselves from our community to do what we enjoyed in the game, and got completely worn down from it.
Sorry, I am not very good at explaining this stuff, and I am not attacking anyone in here. But I just feel like my situation along with many other players are being overlooked by a drastic measure in this thread.