If by incredible you mean bloated inept garbage filling the bird at usability, accessibility, and efficiency. NOTHING like blowing two to ten times the code needed to do the job, wallowing in ignorance of the most basic of accessibility norms, telling semantic markup to **** off, etc, etc...

FFS two thirds of your screenshots of how great this idiotic trash is don't even meet accessibility minimums for colour contrast!

I am shocked the complex, convoluted hoops riddled with bad practices and utter trouser-stain results people will THINK its somehow magically easier, or better... just because "wah wah, eye duns wunna lruns teh HTML un CSS".

The people who MAKE these garbage frameworks and systems aren't even qualified to write HTML or CSS, much less have the unmitigated gall to tell others how to build websites!

It's all predatory scam artists BULL!

Though thank you for pointing out a few I've not heard of so I can make even more articles ripping this mind-numbingly dumbass rubbish to shreds with actual examples.