Asking a judge for a really broad constructive warrant and pretending that the founding fathers anticipated this use case in their aggregate infinite wisdom is very common
See pages 20 and 21 of https://www.justice.gov/opa/press-release/file/1386631/downl...
Madison deliberately left many provisions in the Constitution and Bill of Rights open-ended because he wasn't an idiot and knew that the founders could not anticipate everything. Had the FBI acted on its own it would be overreach. They went to court, got a warrant, and did pretty much the minimum required to eliminate the threat.