None, in nearly all cases it's unnecessary. The games that could make use of automated routing often involve complex logic which would make the implementation take more effort than it's worth it.
The Boots of Blinding Speed are not used in Morrowind speedruns. The high speed is achieved with a weapon swap glitch(only present in the 1.0 version of the game) where swapping between two weapons quickly will apply all of their buffs permanently to your character. This is done with two story related artifacts that happen to buff all sorts of useful stats, including movement speed.
Bit off-topic but I don't think the "Cultural Differences" dismissals are unique to Japan; One of my friends from the US will often try to explain disagreements away with "must be different over there" and other similar statements. It's endlessly infuriating.