It's been a decade+ since I used to catch the Green line at Park St, but at that time it was the noisiest, squealiest station that I regularly used. Not surprising to learn that parts of that station are left over from the 1890s.
It's deafening
It's much more likely that simply changing the way they administer these tests had a more significant impact on test scores than phone bans.
This is a weakness, not a strength of agentic search