Evidence easily contradicts discussion on using HTML for metadata

[marcoscaceres]

The document says:

Additionally, the combination of a number of [HTML5] features, such as the title element, meta application-name element and link icons element provides similar capabilities, yet this solution lacks sufficient comprehensiveness and cohesiveness to meet the requirements.

But gives no rationale, nor cites any evidence, as to why there is not "sufficient comprehensiveness and cohesiveness to meet the requirements".

Over 500 sites in Alexa's top 50k are using meta tags with apple-mobile-web-app-capable.
Over 4000 sites use meta tags with apple-touch-icon (that's 8%!!!!! of the top 50k as of September, 2013).

So clearly, the above is wrong.