Why would it be hell to play shooter without it? I don't particularly care for FPS on console - I'm a m/kb guy >:)

My money is on Realitykings 

I don't notice rumble much either, not missing it at all when playing on the pc with the DS3.
It can be useful when you play a sim racer with the sound off, rumble can take the part of the squeeling tires to drive on the egde. As for shooters, the flash indicators on screen are way more useful then rumble. During cutscenes it's absolutely pointless. I usually put the controller down during cutscenes and it makes one hell of a racket rumbling on a wooden table.

Maybe the finer rumble control could be used for some fun stuff. Make the controller draw shapes on the floor rumbling around.

I wonder how properly placed rumble coded for trigger use feels on the DS4. If it does have so many multi-points, the vibration could be placed well around the index and middle fingers where you hold the controller and could provide solid feedback regardless. Man, i can't wait to try these things out. Bring on next gen!

Yes, they confirmed it.  Putting the feedback in the triggers is the result of some creative genus at Microsoft.  I'm sure the WiiU2 and PS5 controllers will have them.

But hey, just like a Wiimote, the PS4 has a little speaker in there.

Here is my thread about me testing out the controller.  http://gamrconnect.vgchartz.com/thread.php?id=162150&page=1

About rumble making FPS feel more "real": I never remember feeling a rifle rumbling, and even the first time I used an assault rifle during military service (back then Italy still used 7.62 caliber, only a batallion of my parachutist brigade was already evaluating 5.56 rifles), both noise (at least outdoors) and recoil were less than I expected (although during an urban combat simulation, inside a small room the noise once happened to be a lot louder than I expected and my ears rang for days ).