When # mentioning something, it could include the id + the name in the link to the item.
The hashtag mention is purposely designed to only include the ID. This is to handle many cases where the item mentioned has a long name and will potentially take up a large amount of space. We recommend typing the record name or describing when providing the link for reference.
As such, we are unlikely to make revisions in this area. We hope you can understand.
Interesting that this was actually implemented :)