Originally there is no doubt that what you say is true, the blend originated in China ... but the name Earl Grey was given to it for a reason and I am approaching it from that perspective. In addition, the work is purely a work of fiction (though that fictional tale is used to couch some messages that I consider to be very relevent to today) ... so I hope you wont hold too much against the work as a result.
If you get a chance ... read the whole story.
FRegards.