> We’ll model it in Ballet on your real systems in a 30-minute working session

You drastically underestimate how bad most systems are. All of the vendors in your examples have good APIs. Those vendors already did the hard part.

All of the systems we need solutions for are moving targets that are breaking constantly. You can’t model those in 30 minutes because the ways in which they break don’t show up until months later.

Yet another automation? How do you plan to win the market when you add just 1% of extra value? In a few weeks it's commodity. The fact that it's easy to build nowadays don't mean you need to build every cool idea that pops up your mind... However, I might be completely wrong - and in that case, I wish you luck and success on your journey!