Deal in absolutes much?
It can be a matter of taste, IMNSHO, and isn't
always an indicator of a shitty player.
For instance, if you removed all the click and string noise from an acoustic double bass track, you wouldn't have much left.
For the types of dirty nasty proggy bass sounds I prefer (with prefer being the operative word here), string buzz and clicking are a big part of the sound.
In fact, we sometimes
mic the strings on an electric bass just to get some of those sounds back in. I like my bass to sound like there's a human playing it, after all.
Just my $.02