This is a fine arrangement of (presumably) the best movie music ever written (IMO by a large margin), and played 'musically' - with lyrical phrasing, pacing etc. Beautiful in parts, exciting in others.
At the same time, one has to notice that this playing goes strongly against the grain of the instrument! The bass guitar is essentially a rhythm instrument - indeed the primary rhythm instrument (more so than the drums and rhythm guitar) in most kinds of pop and rock.
Why use a bass guitar if you spend nearly all your time playing the highest notes; why use four strings instead of six? There is a flavour of elephants tap-dancing about the enterprise - its surprisingly well done, but why have elephants doing this kind of thing?
(Yes, I'm aware of the Sam Johnson quote...)
I could imagine that (on the one hand) the very best bass guitarists ever could not play this; while (on the other hand) someone who played this well might nonethless be a useless bass guitarist!
So, for such reasons, it is difficult to see this as (in musical terms) more than a virtuoso novelty. Yet at root; music is music, and good playing is good playing - and why seek further?