There were some additonal reviews and comments in the initial PR after merge e.g.:

If we start to use this, that will get duplicated with the * Closes .. that the bot adds. Do we then want to remove the bot action? (or some way to unify those? but since this is free form, it might be difficult to have the bot check it)

Originally posted by @jorisvandenbossche in #15250 (comment)