Welcome to the people debuff that tends to hinder progress for everyone present.

If there's a concern about AFKers continuing to congest instances so players can't turn in collectibles, then perhaps SE can give players a 10 minute buff as they first zone in. Crafting a Skybuilder collectible while in the zone resets the duration.

The 10 minutes is plenty of time to visit the vendor if a player wants to spend scrip they've already earned, to turn in collectibles they've already crafted or trade materials to crafters who are actively crafting in the zone.

If someone wants to round robin going in for the sake of trying to camp for a FATE that no world other than Spriggan is close to spawning, let them go for it. As they get kicked out, someone else will have their chance to get in.

As for people complaining their world's progress is now slow since the change, I got news for you. EVERYONE's progress is slow. The number of contributions needed to trigger the Stage 3 FATE is significantly higher than the amounts needed for stages 1 and 2 combined. Go take a look at SE's tracker. Every world except Spriggan is showing Stage 3 works pending, even those worlds that had unlocked Stage 3 early Wednesday.

Anyone camping a congested instance hoping for a FATE spawn is doing a disservice to everyone on their world because they're keeping the crafters who would be making contributions to speed up the progress from getting in. Do the smart thing. Get out unless you will be actively doing something that contributes to progression or are just visiting the vendor quickly. AFKing at the Skybuilder's Board is not going to make the progress bar move faster.