I think the person that wrote the article linked in the OP has very little idea of the many uses for MIDI. I use MIDI as an intermediary. For example, if somebody mentions a beautiful melody on a thread, I might go to abcnotation.com or the Session and copy the MIDI to Noteworthy Composer. After that, I might change the key or write a harmonizing part. I note the chords on it.

The process might begin with an ABC file posted by a Mudcatter. I appreciate those. I just worked on "Swinging Shepherd Blues" that way.

I often change an old dance (16th or 17th C.) from F to G. That makes it nicer for guitar and has mercy on the flute, whose lowest note goes from C to D. Then I print it and play it on my piano or share it with friends in our monthly sessions. If we want to bend a note, we do it with our fingers.

Few people ever listen to my MIDI's, but I want to make them enjoyable. I find that Recorder and Orchestral Harp make nice recordings. Reed Organ and Acoustic Guitar are nice. The default piano sound is very cold, and the flute and violin are pitiful.

Sometimes when a new piece is tricky, we gather around the computer and listen to the MIDI several times, hearing the sound and watching the notes and knowing that the timing is computerarily accurate. This is a very helpful thing to do.

Sometimes I amble through the Lester Levy site, looking for good waltzes to play at English Country Dance. There it's a matter of opening Noteworthy and Levy in tiled windows and typing in the melody line. It takes a while, but I know a lot of tricks, and the process brings long-lost music back to life. I also enjoy doing this with forgotten ragtime.