Another user who feels this is sorely needed. And here's my specific use case:
I recently made the jump to Designer after many years (and lots of lost money) to Illustrator/CC. Now, I have a bunch of old .ai files that I'm trying import into Designer, and really hitting my head against a wall with the amount of settings/properties that are being dropped through that import. I get an import is always tricky to do right and I'm certainly not expecting it to be perfect. But the process so far, at least as best I can figure out, means I need to rebuild massive amounts of my files from scratch.
Let's take one file as an example - I have a map with upwards of 250 stations, all with text labels. About 30% of these text labels were multi-line. When I import this into Designer, it converts all of these text boxes to Artistic Text, and breaks up multi-line text into separate objects. The breaking multi-line text into multiple objects is a pain, but one I could work with...but now all text being Artistic too means any multi-line text boxes needs to be recreated rather than just edited, and if I want to keep flexibility with editing in the future I should probably do that with the other text too...guess I'm rewriting all 250 station text bubbles from scratch.
If someone can point out a better way to handle this I'll gladly listen! But unless I'm missing it, there's no way to choose Artistic vs Frame for text when importing a file, and coupled with no way to convert post-import, well, it's a struggle for sure (to say nothing of the fact that the text import also dropped horizontal/vertical alignment settings, baked in my "false-uppercase" settings, and in some cases changed the positions of the text as well. And numerous things like curved anchor points being baked in, symbols coming in as groups, and grouping/sub-layering in general being lost...well, it piles up).
Anyway, I don't mean to digress - all this is to say +1 from me too! Hopefully this provides a clear example why such a feature is, from where I'm sitting, very much needed.