The market for playing a track of MIDI data (in exact interpretation) is flooded; it's called synths and samplers. If you want exact MIDI data replication that is how it is done.

Realtracks are a whole 'nother animal. Part of the beauty is you get to see how various studio musicians (with the algorythm) would interpret the various styles and progressions. Some people worry the realtracks will sound stale. To me, music created by a single person with their own (exact) ideas for every part can become stale very quickly. One of my first thoughts when experiencing realtracks for the first time was "Wow! Now I can have the input from different musicians on an idea, instantly and with lots of variations!"

Some people look at the lack of control as a weakness, I see it as an opportunity to explore. Otherwise they would just be another synth/sampler concept. As they are they go to the next level.

I do not work here, but the benefits are still awesome
Make your sound your own!