Sh!tty NINs always sucked.
Maybe you were one of them.
Your blind to what nin was. Theres no use saying 'A Good nin was a valuable asset to a ls' or 'Nin was always a great DD' when a job is only comparable to other jobs.
Until last update, Nin sucked. It fell behind in just about every department.
Now, Nin has risen up the ranks, and is currently sitting in the No1 spot. All an oldskool nin needs is a pair of Magian Katana'a RR/VV and (s)he's hit the jackpot.
Its understandable lots of old nins wil be comming back when SE has littereally flicked the job from bottom to top.