4.2.4.3 The supplier shall review the status at appropriate stages of product realization and take suitable action.
Any offers on what this means?

APQP feasibility reviews.

"at appropriate stages of product realization" This tells me we are past the feasibility review.Am I reading too much into this?

Depends upon where your defined feasibility rewiews are. I read "...appropriate stages of product realization..." as the product design / development stage. I can see where you can reaqd it as any part of the design / development stage as well as production. Strictly speaking, while the title APQP implies the design / development stage, when you read it through it really addresses, everything from the beginning (concept) to end of product life.