@fredvd This is not about Diazo anymore 
There are indeed challenges, a huge amount of them. Challenges that should be addressed as a united community. The community is fully aware of it, you named just a few. We are in continuous improvement, and the same Volto nature allows us to do giant leaps forward, but we need hands to continue nurturing it. I'd say Volto is where Plone 2 was back in the day.
Yes, we have kupu on it, but hey, we already have Mosaic (one with superpowers) on it. We still don't have portlets or viewlets, but we will get (soon) to them.
That's why today I asked for keeping the focus in other discussion.
I'm confident we will get there, together.