No, previous codes show us how we got here and in this case clearly demonstrate the code making panels willingness to allow unsecured conduits.
Regardless, current wording of the Code REQUIRES support and securing of the conduits. End of discussion.
To quote you in principle, I am dismayed that someone who has such a strong sense of following Code is so adamant in disagreeing with something that your own research and postings of Code Articles here clearly indicates that your interpretation is incorrect.
As it is written, the conduits in the truss MUST be secured at the 10' or less intervals.
Until the "and" is removed from 358.30 this is the way it is and anyone trying to say differently is just plain wrong.
Like jhroe, I am done with this discussion. The language of this Code section is crystal clear and is enforced as written by L.A. County and for my neck of the woods that is the ONLY Code-Compliant way to run conduit thru trusses, with securing at not more than 10' intervals.