OK, so you've got an example that is all but a straight line from Visicalc. If that's still the dominant example after all these decades, it does not sound like a market that has been successfully disrupted, right? And indeed many have tried and all have failed. It is exactly what the article says, a perennial startup loser (and open source project loser too).
But there are tools like LabVIEW and Simulink (MATLAB plugin), which are fairly popular among engineers.