SeeJane and Inkkling, you're exactly right. I and so many of us have contacted Apple about this. I did via Apple Care and was transferred to senior-level support, where I explained in great detail what we all are describing here. To no remedy.
You are correct that the flaw is forcing us to interact with the phone while driving, or be without the services touted by this company when selling the product.
While the "Solved" post offers some very small degree of workaround, it does NOT resolve the problem, and we have told Apple that, here and elsewhere. They certainly should be aware and should have explained the problem to their support staff so they aren't clueless when we reach out.
Our concerns are being ignored.
Needing a resolution, as I WANT TO DRIVE WITHOUT THE DANGERS OF INTERACTING BY HAND with my phone while driving, I have spent significant funds purchasing the new MS Surface Duo. This puts me in the Android camp for my phone for the first time, and I've been Apple iPhone loyal for many years and through many purchases for myself and my family.
I do not want to put us at risk, however, and Apple is tone deaf on this issue. I'm so surprised they would be willing to risk their 22.17% iOS market share.
I know the Android switch to this new phone will not be perfect, but if it meets my objective of hands-free communication (which clearly is what we all want here), then it could protect my loved ones and yours, and it's worth it.
In my humble opinion.