“I think as you can set which layout element is used to create columns in theme settings, this should hopefully satisfy everyone!”
Where did you find that option? I only found the “converter”.
“Not sure how to rename it now that you can set which element is used to create columns, it certainly can’t be renamed column now!”
Valid argument. Damn it was so sleek on first view. 
However, reading all this brings me back to my starting point. It really wasn’t communicated well. I would really like that to be better in the future. I just assume now that this should be out quickly before the vacation.
edit
I think I know what you mean. But that creates a mess.
You mean the block / div settings in global styles correct?
There you can change the default attributs / Propertys of Block / Div and section but not what kind of element is used for structure (or I missed the configpart).
No imagine I change the div back to flex and 100% width. And try to export components to another installation that use the standard props for div and block. What will happen to this? Will the propertys be overwritten? Or the ones of the template?
Also that don’t get rid of elements I don’t want to use. I still have my didactic problem.
But maybe I am just overlooking something.
edit2
Ok got you now. It is not built in yet and the only part we can see this is in Thomas reworked article with features that are also not on any roadmap and with information that maybe would be very important before reconstructing the whole thing.