Templates in subfolders

I was reading the documentation https://getkirby.com/docs/guide/emails#html-plain-text on how to create an html email, and I used a template file inside a subfolder as in the example. That was not working for me, the page worked only when the template was inside the main templates/ folder.

For organizational purposes, can we have templates in subfolders or was this a mistake in the documentation?

Normal templates cannot be organized in subfolders. The email templates used for $kirby->email() however, have to be inside the /sites/templates/emails subfolder.