To me, if a truss was considered a "framing member", by builders, it would be allowed.
But I can't find any definition of a truss being a framing member, only trusses being built from individual members.
So drill a hole through the top chord, bottom chord, truss web, diagonal brace, tie beam, queen post, slider, straining beam, whatever, and it will meet the letter of 358.30(B), though probably fail the structural for the G.C. :roll:.
But if not "supported by openings in framing members", the EMT does not comply.
Can you find a reasonable example of a truss being defined as a "framing member"?