Tools to build web apps and web pages without coding knowledge have been around for over 2 decades. Microsoft Frontpage allowed uses to build a website using a WYSIWYG editor.
Frontpage and other page builders had a much much lower bar for capabilities though..
Even Wix and Squarespace are "building block" tools when you start to layer functionality on top of the designs.. What you can do is limited by what the developers of those tools put in them.
AI lets people build much more bespoke things, and build things that others haven't necessarily thought of (or haven't built tools to build)..
And that can definitely be a double-edged sword of course, because a non-developer might not know when they're wading into dangerous waters...
We're talking about building useful tools. Small things, that work in a way that makes sense to the individual.
Something that could be churned out in a day or two by a competent dev, but is completely out of reach for Joe public.
That's where we're at.