There were no Blood Elves in WC2 which is where the blue warpaint Alleria has comes from. She’s a High Elf that became a Void Elf. She never became a Blood Elf nor was ever termed a Blood Elven hero.
No such thing as a “WC2 Blood Elf Farstrider”, the term change to being a Blood Elf for Quel’thalas didn’t occur until WC3.