Layout Grid: Better transform to columns option

Layout grid has an option to transform to Columns block. Since both blocks use columns I hoped for a more or less seamless transition. For example, when transforming Layout Grid with two columns, I expected to get Columns block with two columns as well. What actually happens though, is the whole Layout Grid block gets wrapped in Columns block with a single column.

Here's a quick demo:

Not sure if this is possible, but I'd love to open up a discussion.