Why aren't there more tanks in FFXIV?

[ispano]

-snip-

Telegraphed aoes can be dodged without moving the mob at all. Since you only have to stay out of the telegraph, once that's gone the mob will do the animation. You can move back during that time and not have the mob move at all.

For conal, yes. For circular you will have to reposition (or eat it) and if the DPS is going all out, transitioning to target 2 can be hectic and that leads to anxiety.

No, even circular you can dodge and not have the mob move. Unless the circle is huge and animation is very short.