When users get their article blocked, the error messaging could include a way for users to report that their article is already well reviewed. This can link to the project talk page or a specific page defined by the community (e.g., Vietnamese Wikipedia editors proposed to use this page).
The message can pre-fill helpful information for the investigation:

• Article (including revision version) and languages of the translation.
• Reference to the problematic paragraphs and MT percentage.
• ID of the translation in the CX database for easier inspection.

In this way it would be easier to coordinate with different communities and identify where the MT limit system needs improvements.