The tone and dynamic shape of the note envelope changes as you play higher on the neck. I generally prefer the sound playing closer to the nut. My point is the specific tone you are trying to produce can be a factor in what part of the neck you use.
I started on 4-string. To play across a wide range required playing up the neck. My primary bass since about 1995 has been a 6-string (Yamaha TRB6P). Over the years the logic I use to navigate the fretboard has changed. Now I am more inclined to play across the neck rather than up and down the neck.
The strings that were originally on the TRB6P had a thin sounding C. I frequently avoid using the C close to the nut, to avoid the thin tone. The transition zone where sound become more normal occurred between the 5th and 7th fret. So for several years I played the 6-string like it was a 4-string with two extra strings.
I don't change strings very often, but eventually I put a new set on, and the C string sounded fine close to the nut. As a result, the way I navigate the fretboard started to evolve. I am most comfortable and fluent on 6-string. I can still play a 4- or 5-string, but I have to stop more to figure out how to play certain lines. Also I find if I play a 4- or 5-string very long that it starts to degrade my fluency on 6-string. Because of this, I rarely play anything but the 6.
Hopefully you see how this relates. There are all sorts of reasons that impact why someone might play a line using a certain finger pattern...and those reasons may be idiosyncratic to the player.
IMHO, use whatever fingering works for you as long as it allows you to capture the required tone and nuance.