While that’s true, short term (vacation) rentals existed well before airbnb, they just weren’t so prevalent.
This is of course just my opinion, but no horrors, imaginable or otherwise, that the Japanese could’ve possibly orchestrated at the time, with the means they had available, would’ve come close to the devastation caused by the bombs in Hiroshima and Nagasaki.
If I have to guess, because nobody but a racist party like the league would do such a thing, so it’s a pretty important detail. Then again, I agree it should specify “emphasis mine” or something…