It is unfortunate that the additional verbage cast a doubt on how well he understands wordpress eco system and therefor his ability to deliver a useful functioning product. It is unfortunate because the goal itself is worthy and doable and he is a good coder.

I am not sure the end result will be truly useful to anyone as the same goal can be achieved in different more direct methods (an alternative approach is for plugins to add a manifest of public API that can be used by WP-CLI), but what actual users prefer to use is very hard to predict.