Day 1 we didn't have issues with queue's besides like very specific things like frontlines and ranked pvp. The problem moreso came over time when the initial rush died down, especially when EW population dropped off globally. After that, expectations to DC Travel started and it never recovered, especially with players gouging the market. And everything snowballs into an exodus after that point.
On one hand, you could be stuck with long queue's, but on the other hand, if everyone lives on another DC 24/7 the problem would never be fixed. It's just shifting responsibility on someone else to fix the problem. Any new players would just be told to hop DC's as a regular thing. The reason for Dynamis's creation was to relieve stress and people going elsewhere to log in and interact consistently was against that concept anyway from a dev standpoint.
When it comes to lockdowns, I would've preferred them to not even allow travelers at all on Dynamis after a certain point or for us to be able to go to other DCs. I would've preferred if Xbox got forced to Dynamis. Because I don't want Dynamis dependant on travelers. If you live and die by travelers, your queue system hinges on traveler interest which is going to be inconsistent as hell. If you couldn't make purchases from other data centers, that would've forced people to go out and gather for Dynamis, if you couldn't sell and transfer sales from other DC's easily, that would force people to stock Dynamis and drop prices instead of selling on worlds with higher demands for consistent income. Interaction with other DC's can breathe temporary life into a DC, but consistent reliance on another DC, will kill the original worlds. When this game first launched, every individual world had their built up market, every individual world had their own queue's, their own hunts, their own venues, etc. because world visit didn't even exist originally. Once Dynamis is stable and self-reliant, then I would open it up. That's handling it from the current state because it's too late to rip people out of their houses and FC's on main data centers to combine existing worlds. If I wanted to handle things my way from the start, I would've did it like Crystal's creation and i've yet to see an interview saying why they chose not to go that route, unless there was massive backlash back in 2019 (before I started the game).
Most of the current influx of new people and transfers is on Kraken currently, and from the stats, what Seraph was to Hali/Madu/Marilith is what Kraken is doing to Golem/Rafflesia/Cuchu, which is another dev mistake along with these trash world names.