Yeah, I mean, as is, the PSD export option is essentially worse than nothing. The way it automatically decides on merging players makes no sense, to the point where I have exported documents with a single layer, even though theoretically "Preserve editability" is turned on. I have no idea how a single pixel layer can be considered "editable".
The PSD compatibility is to me the single missing feature. I understand that it's not possible to export accurate, editable text to PSD, but at the very least it should be possible to:
a) maintain layers as they are, even with rasterized text
b) accept that text isn't accurate and export with the most basic of properties.
I suspect lack of accuracy is fine for most users as long as one knows what's missing. As is, the export options just select what they will and won't export at random.
What if you're not working closely with someone? What if you just need to output a layered file, so that the layers can be toggled on and off?