In another forum I've seen pictures of so-called Russian 'saboteurs' and their belongings. Lots of SIM cards and ways to get connected. If Google record the IP address, or even the MAC address, of whomever adds to Maps then perhaps they can share that with ISPs so these devices can be monitored or blacklisted.
Generally speaking, the current generation of large infra/content providers do not appreciate countries taking advantage of their services to harm their customers and will intervene to negate or deter such actions.
I'd describe that as being aggressively neutral, not picking sides.
The US doesn't have the best track record either(read the worst), but I'd rather them have a "we will not support any belligerent at war" instead of picking a side policy.