Agreed with @robin.berjon.com on avoiding anything that sounds like protocol supremacy. In fact it might even be worth pointing to Germ as an example of going faster and further together (and cooperating) across protocols.
In the last section, not sure about the "AT Protocol *needs* you to join us". Maybe something more like "Please join us!"
Otherwise, a very good articulation of the strengths of the protocol and the collaborative style of the developer ecosystem!
Re the last section, maybe we can put "We can just do things" which is sort of becoming the community slogan!