even without getting into fixes, silent clones who communicate through hand gestures is a yes please. Worst case, a fraction of our clones are relegated to rear echelon duties somewhere and we lose some money on them.
Better case is we work out a fix that gets some or most of them up to full functionality and we have a medicine, implant or gene therapy to sell to the galaxy.
They'll develop a natural language. It's what happens whenever you got a sufficiently large group of deaf people roving around.