I'm not sure it's the word Beta.
It's also perhaps that this is a great idea/tool and therefore should be "integral to the platform" as a standard mechanism of app submission / deployment.
For new folks coming in there is a great deal of figuring out "who's writing what" , "what protocols & standards exist" and "what's scantioned , sustainable, and going to be supported" long term.
It's scary to us old schoolers 
This is a step in the right direction,
but some of what folk are coming up with seems more root level functional than add-on-optional.
