Good God.
Not two days into Early Access and everyone's already acting like SE's abandoned the game and left it to die.
It's the weekend in Japan, too. It's more than likely most of the team is at home resting. They've got a skeleton crew working over the weekend to make sure the game is at least running, and they're probably short-staffed to handle these problems.
Calm the hell down and be patient. I understand you're upset over not being able to play during Early Access, but you should have expected that there would be problems like this. Square-Enix hasn't exactly had the greatest track record in stability for content launches.