Sure, but it speaks directly to why the difference between them is really about mindset and not technologies. For example: If email newsletters were just published as an RSS feed there’d be a lot less need to spend big bucks on deliverability providers. And: If people had a clearly visible button “Mark All As Read” in their email client (with confirmation) there’d be a less uncertainty about using it when underwater.

Indeed, there's a different in mindset between what is and what isn't acceptable to skip. It's too bad it takes work to make the distinction in one's own mailbox between the two categories, but once it's done RSS can be managed the same way email is