No they cannot, and no software is not.
Backing tracks cannot replace a rhythm section of live musicians. Karaoke performers like to say it can, buf they are woefully inadequate. So much is lost...particularly INTERPLAY....which is arguably one of the most important aspects of a band of people. Backing tracks do not interplay.
It is not a 'form of creative expression' ....much....to literally perform your tunes with the SAME BACKING track show after show. Yeah YOU won't play the head and solo the same each time...but the track is giving the lead NOTHING as far as diversity or direction. So, again, a most important part of the 'creative' aspect becomes completely rote, sanitized...
With due respect...to me, a musician who says 'tracks are great because they do the same thing every time...no variances'....is a musician who first and foremost desires comfort and homogeneity in their 'performances'. No surprises. They don't wanna be pushed or influenced. They just wanna deliver their product.
But that is not what many genres are about. So it's an odd, and IMHO, artificial, juxtaposition when the music turns into that.
Doesn't matter how 'human sounding' the track is, it isn't listening and responding....so to say 'digital' musicians are superior to real ones....respectfully...you are revealing a lack of experience in real band situations.
Understandable for someone who has relied heavily on tracks for years...the more one stays in their limited comfort zone, the more they will make assumptions that leaving it has no great benefits (musically). But the more you play with other humans the more your viewpoint will likely evolve....