Thanks notifications for Flow comments should have a secondary link pointing to the talk page / Flow board.
Related Gerrit Patches:
|mediawiki/extensions/Thanks : master||Add secondary link to Flow board for flow-thanks notifications|
Re. the narrow issue, yes, the secondary link to the Talk page is present.
Re. the Thank message overall, the form is incorrect. The message should not include the pagename (which was moved to the secondary link)