It does apply to everything abroad. The version of this announcement in Russian [1] is far less ambiguous, and clearly says: "Гостям из России и Беларуси больше не доступно оформление бронирований на Airbnb." (Bookings on Airbnb are no longer available to guests from Russia and Belarus). This is also corroborated by first hand accounts of people who used the service after fleeing the country.
And no, this doesn't hurt "Russia" (as in Putin's war effort), but it does a great deal of hurt to anyone protesting war.
[1]: https://www.airbnb.ru/help/article/3211/%D0%BF%D1%80%D0%B8%D...