While I agree that it will be much better to have a full Cwicly solution, one of the biggest benefits that Cwicly currently offers by enhancing Gutenberg is supporting other 3rd party blocks.
Without this, if there was a feature currently missing from Cwicly, we would not have the capability to simply search for other block plugins to fill the gap until Cwicly adds the feature.
A perfect example being the ToC block:
So the main benefit of how it currently works is that Cwicly doesn’t have to be everything for all people, it already provides more on its own than most other builders and because of the above flexibility, it can continue to grow at its own pace.