I take issue with the wording choice here. There are many things which are orders of magnitude worse that publishing untested code, and your choice of the word “push” makes it appear as if users are somehow being forced to use the OSS EPM. Wording aside, your sentiment is essentially correct, the project maintainer(s) should test their code. The issue is that the OSS EPM project is community supported, and at present, there is no community supporting it. You seem to feel that the absence of such a community automatically puts the onus on FreePBX developers to maintain it.
So there is a dilemma here, does FreePBX publish less than perfect code and run the risk of annoying users with known bugs, or do they not publish the code and run the risk of being accused of suppressing the project to promote the paid version. The decision has been made to publish the code and make it clear at every opportunity that the OSS EPM is community supported.
I wrote a lengthy post the other day about this module which is vaguely related: