Well certainly anything that moves this from precedent and complexities of corporations winging it to black letter law would be a net gain. The role of search warrants and how to handle international issues should be between the USA government and the EU. Tech companies should just be following the law. I think everyone agrees the stored communication act (1986) needs updating
Now a few points:
Europeans keep citing European laws Microsoft's council has not been able to show that there was any Irish law in conflict with the previous warrants: Second, while many media reports have claimed that the decision was contrary to foreign privacy laws protecting the requested emails, it was clear from the transcript that Microsoft never raised such a conflict of law. (“Microsoft . . . has not been able to point to any specific provision of Irish law that in any way forbids it from handing the data over.”) Some commentators claimed that the data must be subject to foreign privacy protections because Ireland is part of the European Union, and thus the data must be subject to the European Data Protection Directive. However, what they failed to appreciate is that the European Data Protection Directive, by itself, is not legally binding. It needs to be ratified as national law by each member state. As a result, there are variations across the member states as to what is allowed and what is prohibited. Accordingly, the impact of an actual conflict of law on future warrants remains undecided.
Moreover the issue was always that USA people had control of the data: because Microsoft could access and retrieve the requested documents from a terminal within the United States, even though the actual search and retrieval would occur abroad, the data was still under Microsoft’s control in the United States, and thus properly subject to the SCA warrant.