Thanks for taking the time to write down your thoughts and impressions @owynter.
Overall, I can understand and appreciate your concerns about the way we’ve handled the Columns block in a whole. We might review it in the future (maybe have a Pro Columns block) which allows more precise control over the Grid element.
Good point.
We based ourselves on how the Gutenberg Columns block was designed at the start, which is a limiting factor for us now since the container is necessary and cannot be removed. But a Pro Columns block could be the solution.
Fixed in our next update
Good point, will add that to our to-do.
I’m sad to hear that. We certainly did focus on trying to make the Grid easy to use: