It could have been so different. In 1986 I was invited to a meeting with the original Fairlight CMI team. They had invited a bunch of people in sound post to meet an discuss their project to create the Fairlight MFX which was designed as one of the first DAWs targeting film & TV post production, not music creation. They showed screen layouts and I asked why the tracks were horizontal not vertical like a dubbing chart. The purpose of course of a dubbing chart was the tracks correlated to channel strips on the mixer.
I envisaged a system where the computer tracklay would also replace the need to have dubbing charts with a fixed head position and scrolling tracks. The software team had started in England and was using the idea of musical notation with horizontal orientation so that’s why they had the track layout horizontal. If I had been able to influence Fairlight to display vertically then the look of DAWs and likely NLEs might be very different as the Fairlight MFX preceded Avid by a few years.
I can see arguments for and against prior knowledge of how systems had evolved to work. By ignoring a lot of efficiencies and language, worked out over many years obvious things like track orientation were re-invented and possibly to their ongoing detriment. Conversely some of the detritus failed to be incorporated and that’s a plus for sure.
On the topic of Randy, I listened to both videos and it was great info to hear. One thing really struck me was that he was the only software engineer who did demos. My experience with dSP and Fairlight development was that many of the software team were highly experienced sound editors and could both code and demo effectively. I think that any software team that can’t actually edit with the software well enough to demo it is strange.