What was a retread ? Apart from the Kirk death reversal scene ?
Are you kidding?
What does it matter if they recycled a scene as long as they did it well? Which they did in my opinion.
Yep, they've been rehashing and remixing plots since season one.
STMP is the Changeling
TWOK is Balance of Terror
meets Space Seed
Most techonogod keeps civilization down stories are pretty much the same. Usually ending with Kirk blowing up a computer.