What me surprises is, why do you ask these questions and this with your first sentence of this topic?! There are many reasons why people didn’t speak about it. For example - I didn’t knew about it. Others may just want to see how development is going on and if it will get serious and not just a “tried and given up project”. Also developers themselves could post something here, but they had reasons to do not I guess.
So instead of asking “why didn’t you?!” you just could start to roll out the topic in a normal way. “Do you know about the specific plans of GNUnet for Librem 5?” and so on. 