@Ina
That reason is partially true because pld never used to have any ws really worth using so there was no strong reason to actually care about TPing up on the mob. Atonement did start to change this thinking but abyssea kind of halted that because of how much it broke DDs. Pld is just as good at taking hits as it always was, but even in a full DD setup, it simply cannot keep up with a nin/mnk/thf/war/w.e's DoT. And with how easy it is for mages to spam cures, there is really no reason not to use a DD as a tank.
@OP I tip my hat to you good sir. Well played!