No one offered to? Not even the business who runs the site nor the departments within said business who do the testing? From the link:

What we test - Canonical’s QA team performs an extensive set of over 500 OS compatibility focused hardware tests to ensure the best Ubuntu experience. Every aspect of the system is checked and verified.

Regular testing for up to 10 years - Roughly every 3 weeks, Ubuntu releases Stable Release Updates, ensuring a secure and reliable experience. These updates are carefully tested by the Hardware Certification team to make sure that systems work well with Ubuntu.

Our laboratories - Canonical conducts tests in dedicated laboratories, located around the world. The “Ubuntu Certified” label is applied to systems that have been verified and are continuously tested by Canonical throughout the Ubuntu release life cycle.

Sounds like it should be someone's job at Canonical to update the list/site.