I think it’s important to be able to do both. Like most music theory, you “learn it to forget it.” That is, study it, learn it inside and out, and then forget it while you’re actually playing and rely on your intuition, which is now guided subconsciously by the theory.What's your stance on counting rather than feeling the beat?
For counting beats specifically, I use it tons when sight reading music, which I made a living at for some time so I used to count non stop. Nowadays I’m not sight reading on gigs anymore. But I still count beats when trying to learn a new tricky part, or when I’m trying to nail subdivisions, or when I transcribe music from ear down to paper, or sight read music on my own time, or when I communicate with band members. (That last part is more important than many give credit)
Counting beats while playing is an important skill for any bassist, or musician for that matter, to have that will only help you understand and communicate the music you play. Is counting beats necessary for you? I can’t answer that, but I personally wouldn’t have had the career playing bass or life experiences I cherish without it.
Oh yeah, you gotta feel the beat too, but feeling and counting aren’t exclusive from each other. You can do both simultaneously. In fact, you should always feel the beat, whether you’re counting or not. If that makes sense.