I haven't checked it out yet, but... Wouldn't one not want html text in the feed, if one chose to use a blogging platform whose focus was text and simplicity? I prefer to read feeds with plain text myself.
With images I either have to eat the storage utilization for them or suffer a privacy leak by loading them when the post is opened. For the latter, there's always a small risk that a post could be deleted or an entire website vanish in between the time my feed updates and the time I open a post, in which case it would be left with text but broken images. I guess they could be inlined (like `<img src="data:image/png;base64,etc"/>`) to avoid that risk. It's even more obnoxiously complex if we're using the modern `picture`/`srcset`/etc to serve multiple resolutions and image formats for various screen sizes, connection speeds, and platforms.