The point raised highlights the necessity for comprehensive review and scrutiny of any changes proposed to this critical part of the system, underscoring the potential risks involved. An example provided to illustrate this concern directs attention to a particular pull request on GitHub (GitHub Pull Request #9049), which serves as a case study or instance of such a change that warrants careful examination.

This emphasizes the broader principle that alterations to consensus mechanisms, due to their foundational role in the functioning and integrity of decentralized systems like Bitcoin, must be approached with utmost caution. The consensus code is crucial for ensuring all participants in the network agree on the current state of the system, and any modifications could have far-reaching implications. Therefore, the call to action is for a consistent and thorough review process for all such changes, regardless of their perceived magnitude, to maintain the system's reliability and trustworthiness.