Hi Fred, I fully share your views. In my case, I found in uniGui the solution to move my applications to the web with minimal effort, I haven't had time to learn HTML, CSS or JavaScript. It kept about 90% of the code of my VCL applications, the changes are due to web development peculiarities, it only used a few lines of JavaScript. My apps are a web version of what they were in desktop mode.
But Ext.JS worries me because few companies can adopt it due to its excessively aggressive pricing policy that requires buying a minimum of 5 licenses, which is unattainable for a freelance developer. In the medium/long term I think that Ext.js will cease to be an option, which will affect uniGui.
The great strength of Ext.JS are the grids.
For my work, uniGui would be perfect if it did the following: it worked with Lazarus, it compiled to Linux, it allowed to use another framework like React / Vue,JS, it allowed to use other grids and it kept the other characteristics of uniGUI but without Ext.JS
Only the FMSoft team will be able to tell us how they see the future of uniGui but at this moment continuing with Ext.JS I see it more as a threat than as a strength.