We already have high-spec servers prepared for version 2.0 and we are measuring the stability, but the current server process code is still the current FFXIV version, so it reaches the maximum quicker than the version 2.0 server code
Even if you take this, lets look at it, how can they test stability? Do you know what "Open Beta" is? Do you know what "Stress Test" is? Do you know why we have them? Because companies cannot stress test themselves, they need us, and in this case, we are kind of doing that now.

They have prepared them yes, and now they are measuring stability, we're the conditions for that measurement.

We are running on the 2.0 servers, with 1.0 Code, that is why he immediately after states "but the current server process code is still the current ffxiv version", the response is also about the current issue of restrictions for character creation world selection.

That may explain it better using this quote that is still vague.