dddd

The bigger problem imo with radial lacing is the failure mode, where adjacent same-side spokes at the hub are also adjacent at the rim.

So in the case of a typical flange failure where perhaps two spokes suddenly lose tension, those two spokes are adjacent along the same side of the rim, causing the rim to go so far out of true as to possibly stop turning and possibly causing a crash or worse, a header. Spoke crossing prevents this by further separating spokes at the rim which are adjacent along the flange.

I've also seen quite a few radial-laced wheels fail while in storage, due entirely to aluminum's "creep yield" failure mode. Spokes don't fail this way but common aluminum alloys are known to yield slowly at the molecular level, similar to how plastics behave, even at "room" temperatures.
Today we have aluminum alloys processed to a degree as to be safely uses as spokes, in tension all of the time, but which doesn't apply universally to old hub shells.