Disclaimer - I'm a VP E at Engineer.ai
You're more or less correct in your understanding, we're trying to get to 80%, and are certainly not there yet.
The other thing to keep in mind is that there's a lot more than goes into developing software than just code.
We've already been able to automate problems such as selecting the optimal creators (developers, QAs, designers) for a given project from our capacity network, the ability to price out and estimate timelines for a project (something that takes our competitors 2-3 weeks), onboard and evaluate engineers on our platform, predict, arbitrage and scale cloud infrastructure for our client's projects, along with a bunch of other areas.
There's definitely a long way for us to go, however we have been able to show proven success on these problem areas already.