User blog comment:Xaero Dumort/"Synthetics" as applied to the ending and the sentence that nullifies IT./@comment-24.8.44.219-20120824090949/@comment-2250460-20120824162552

The Catalyst specifically mentions that the beam will destroy all synthetics, not disable them. In Destroy, EDI, the geth, and every other A.I. (and maybe V.I.s) are dead.