I wonder why a company which is at risk of getting such a letter and willing to inform their customer does not work in multiple jurisdictions. Any unusual acce

I wonder why a company which is at risk of getting such a letter and willing to inform their customer does not work in multiple jurisdictions. Any unusual access to data in one country automatically informs customers (or triggers an alert), with this information being sourced from the other country. This protects both the employees in the US (they did not say anything) and bypasses the letter requirements