The article seems to say that it's not jobs nobody wants, but rather a labor shortage from an aging population. Japan just seems to be running out of people for its labor market.
combined with ridiculous cost of living, terrible work/life balance and incredibly xenophobic immigration policies.
There is genuine demand for physical AI in Japan, there are not enough humans to hire.
I bet, EU will start long debates wether to automate or not :) Japan already skipped that part