Music Appreciation

But, replicating a string quartet or octet on a sampling synth is extremely difficult & on a constructive synthesizer, nearly impossible.
Same with brass sections.
I was a multikeyboardist for 30 years, so trust me, if an artist wanted the a brass or string section to be dynamic & interactive, they wouldn't use electronics.
If all I wanted was a cello witha strong bow attack, then yes. I can do that easily.
Want a sax solo? I can do it, especially since I learned enough sax (with rotten tone) to phrase like a sax.
But, if I wanted a Phoenix Horns thing, I'd be way better off with horn players.
Samplers did, in fact, do quite a bit of what you describe.
But, not synths. Synths sound like synths. They do, at best, a rough approximation of other acoustic instruments.