If creating blocks with Custom Fiels is going to be that easy like how it is shown in the featured image, then this is going to improve a lot the enviroment for developing blocks.

But on the other hand, creating a block in javascript that renders on server is not that hard…

Maybe the only problem I have come across, badly, with Javascript and React with gutenberg is how to handle deprecations when you update your block…

Easiest way I have found out is to simply return a “new block” of the same block you are updating.

Of course, lerning javascript was much more easy than I expected. But I am only playing with the surface still.

But one thing is sure: When you develop blocks the PHP way, you save yourself a bunch of issues.