I didn't say it was a criteria, I said that in addition to being on the committee he's also directed more FF games than anyone else. Yoshida is on the committee because he made FFXIV great and he's the head of the online department.
No, you didn't say it. I'm just saying that.
The guys on the committee have been with Square Enix for a while so they have work experience. They also seem to be the ones who are heavily involved with the IP nowadays and have worked on major titles involving the IP too.
Most importantly, they all have directing experience and have shown that they can handle the challenges of working on large scale projects. They've shown that they can lead a big team and get things done.
I kinda see it like this. Kitase and Toriyama are basically the old guys with experience and Tabata and Yoshida are the fresh blood with experience.
I really don't think there are a lot of good options within the company to chose from. One would think Nomura and Ito would be on the committee because of their heavy involvement with the IP for many years but they're not and probably for good reason.