If on the other hand you have a crew blindly following a SID through a Cb , then you migh have a problem worth investigating, . But for the moment we do not know if that is thecase or not.
Respectfully suggest that such would be an AF matter, given the anecdote of another crew deviating to avoid weather, which investigation would include
"OK, crew flies into a CB, costing us a load of dough to repair the bird, are they nitwits or do our procedures allow them/encourage them to do this?"
A hard inward look might turn up some SOP or training issues, or it might not.