Views comment form missing when using replacement pattern

Problem/Motivation

The comment form does not display when using the {{ comment }} replacement pattern in a view.

When using the Content: Comments field, it shows the list of comments and the comment form at the bottom. However, when hiding the field and using it in a replacement pattern via {{ comment }} the comment form disappears and only the comment list remain.

I feel like this is a bug because the replacement pattern with no customizations should display the same as the original version of the field.

Steps to reproduce

1. Create a node and add new comments to the node
2. Create a view of Content, display fields
3. Add Content: Comments field (check the comment form is displayed in the view)
4. Exclude Content: Comments from display
5. Add Global: Custom Text field, enter in the text field {{ comment }} from the available replacement pattern

Screenshot