Some other bass monsters that use fingers-
Chris Squire from Yes
wow he didn't use to......... but at any rate he's still a monster player.
Just cause he's using a pick in that photo doesnt mean he plays exclusivley with a pick. It all depends on the sound and style your after. I suppose what I was trying to impart is not trying to learn fingerstyle at all is kinda like just learning basic power chords on guitar, and not bothering with anything else.
Nothing wrong with learning to use your finger, a pick, your thumb, or any combination thereof.
It all depends on the sound you like and want, and the style of playing you need to get it.
occasion.