some users may not know it, but MIDI is what allows RTs to even exist, so I don't think RTs are killing MIDI at all, just showing the possibilities .. though a beginner may not grasp that yet
Without MIDI Key and Tempo, RTs would be like canned loops from the 90s (just prerecorded audio)

Plus without MIDI there would be no Kontakt, GM sounds etc. so eventually it becomes something new to learn, just depends on your starting point and path to learning music
Some of us old users learned MIDI first, I suppose some very new users may not have learned it yet, but it is definitely not 'killing MIDI' by taking advantage of it

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