I've always said that the bass guitar and any other instrument shouldn't be restricted to a single role. Hey I'm a groove player myself but I don't begrudge players pushing the boundaries. Look at Seth Horan, he's a bass player but at the same time a singer songwriter who uses the bass as his companion instrument (is this the correct way of saying it? sorry if I got it wrong), are you going to tell him that he should just drop the bass and pick up a guitar? I think not, he's doing fantastic music and showing the world that bass guitar is not only boom boom boom bah doom or just root and fifth.
I'm quite grateful that there was a Jaco or Jamerson and that we have Seth Horan and Zander Zon showing a different take on bass playing.