not really sure its a wise choice to disclose datacenters anymore publicly. Just increases attack vector and not very value adding to people. most customers care about latency and as long as you can point to a region where you are its enough
Also easily found potential military targets: power generation, water treatment, hospitals, schools, government buildings, etc.
Odds of data centers being physically attacked at scale are low. Most of the population doesn't care enough, and the vocal minority is under a lot of scrutiny.
You can hide a handful of racks for some boring 2000s hosting. You can't hide a GW-scale AI behemoth.
Transparency is good.
If the US ends up in a similar asymmetric warfare scenario, the location of corporate data centers being known is low on the priority list. Google is assuming a peacetime footing where public transparency and accountability matter.
So is the US.