In terms of why consumer FOSS software often sucks:
* Good UX requires top down product discipline: cathedral model, not bazaar.
* Product folks are less likely to contribute to FOSS, especially in their spare time
* Therefore they need to do it as their dayjob.
* Running a sustainable FOSS company is hard.
Aren't you the matrix.org project lead though? (if not, maybe your bio needs an update).
Those governments might be paying your bills for now, but you've lost the support from the open source community on the way to get there and soon be forgotten by everyone. I just hope one day we won't have the sad news of discovering that Matrix injected backdoors from the Israeli government to receive funding.
Nevertheless, I wish you all the best.
In terms of Matrix having lost the support from the open source community because Element hasn't implemented custom emoji yet... time will tell. In the end I suspect the open source community would be even more upset if Element had run out of money and exploded (although you never know; haters gonna hate :)
As for the wording, it's on the front page of https://matrix.org, just below the fold. Scroll down once and it's centre of the page.
https://imgur.com/a/jonz89P
The fold below that is "A cozy, safe, supercharged place for your community" and the image says "Kayak club".