it's true they do not have "agents" in any of the 188 countries. However they do have at least 25 employees, some foreign, involved in collecting and sharing LE intelligence between the countries. This act gives the foreign agency exemption from corporate responsibilities like paying property tax and social security.
But this admin undertook this action while more tightly integrating INTERPOL into our DOJ, tightening our connection to the ICC, etc. Were moving in the direction of a single international LE org, and each step no matter how minor has huge ramifications.