A computer can not paint like Leonardo Da Vinci.
He can not write like Shakespeare.
And he can not play music like Sviatlosav Richter.
A prush, pencil, and musical instrument that can not be used by humans is therefore useless.
A prush, pencil, and musical instrument that can not be used by humans is therefore useless.
The point of the post you reply to is that art can be created even when it is not possible or meaningful to do it as a live performance. Performers do not have a monopoly on creating art. In fact, sometimes performers are props that are or have been necessary due to the lack of technology.
For electronic compositions rendered directly to a sufficiently precise format (which MIDI is not), you need no separate performance - the act of composing it and performing it is the same.
Since I reject your premise, your conclusion is irrelevant to me, and I don't think there's any chance we will get any further.
I see from other comments that you imbue the touch of a human performer some special quality beyond the qualities purely physical sound generated, and to me that is pure superstition with no basis in reality. You might as well try to convince me fairies are real.