The status ladder seems slightly odd. The one I'm used to follow is the w:Debian style Experimental, Unstable, Testing, Stable, Oldstable, and Oldoldstable. The ladder this template use is unstable, experimental, beta, stable, unmaintained, archive, and unknown. Some of the states are clearly not similar, but the initial ones can give rise to quite worrisome misunderstandings. An extension flagged as unstable in Debian is way better than experimental, but unstable in this scheme is simply broken.
The term beta is also troublesome, as it relates to the release cycle. Typically a release cycle consists of alpha, beta, and release candidate. The status of the extension sets the limit for the final release quality, but it is not part of the release cycle. I believe the term beta should be removed. [Note that IBM use the alpha, beta, and release candidate for the w:Software release life cycle.]
Either the status ladder must be marked as non-standard, or the status ladder must follow an established standard. If it follows an established standard, then I would vote for using Debians status ladder.