That makes a whole lot of sense-- to have revenue HSR trainsets do their own geometry inspections as they go, particularly since most HSR (France, Germany, Japan) is crazy busy during the day and then needs nightly tweaking.
It makes a lot of sense to have had the whole line scanned (and maybe even more than once) by 7 p.m. each day, and already be working on deploying work trains to trouble spots that have been identified.
Frankly I'd put it on the cafe car on every train if it got cheap enough.
"Trying to solve congestion by making roadways wider is like trying to solve obesity by buying bigger pants."--Charles Marohn