Why is this the best image management process design for this environment?

Centralized image management, typically relying on a single master image, ensures that all deployed machines are derived from the same source, leading to consistent configurations, easier updates, and streamlined patch management across the environment. This approach significantly reduces administrative overhead and enhances reliability compared to managing individual machine images.

No realistic image management process can completely eliminate network traffic, as some data transfer is always necessary for initial deployment, updates, or communication with management servers.

While some image management solutions might not require PXE, others leverage it for efficient bare-metal or virtual machine provisioning, making "not requiring PXE" a situational feature rather than a universally "best" design characteristic.