I think these are 2 different things. Making non-skeuomorphic GUIs (which can be using vector graphics) is about displaying controls and information efficiently and directed at on screen use.
For example, a skeumorphic graphic EQ can look like this, which looks like they do in the real world
Or it can look like this, were it doesn’t look like the real world but it is argueable more useful
It’s not simplified in it’s controls, in fact it has a lot more going on. It is simplified in it’s aesthetic, as in it uses flat colours and basic shapes. It fits a lot more information and controls in a small space though.
The “simple view” would be a different thing, where plugins are displayed like nodes without controls at all. It would just be for routing and stuff or even would be a way to display full routings on a small display the way it is used on the Helix etc
I see what you mean. I think the problem is the file size of bitmaps. The scaling is less about customisability for users and more about, how does this image display when it is bigger or smaller on the screen (zooming etc). So we don’t want users to be able to adjust the size of things, we just want images that render well at all zoom levels without needing to be high resolution pixel images that take longer to load