The whole thing is terrifying and horrific to me, but they keep paying her to do the work so she's fine with it.
With all the churn in certain areas of tech, it's easy to forget how much stays the same.
I was using Macromedia Fireworks MX from the early 2000's right through about 2013 to do graphics for sites I was building people on the side.
I used it while it got several version updates, Adobe took it over and updated it for five or six years, and then discontinued it.
Meanwhile I was still using the old version to make beer money.
I only quit using it because I finally admitted I kind of suck at graphic design. Besides, there doesn't seem to be much need for graphic design in much of the modern mobile-first, material design world anyway.
I bailed on the whole thing and have been sticking to back end at the day job these days. Things move at a slightly less hectic pace back here for me most of the time.
That said, neither app has the WYSIWYG editing that DreamWeaver had. But I've always preferred to hand ode my HTML anyway.
Yeah you could always edit the individual files that it outputted, but in some cases people were using this system to manage sites with hundreds or thousands of pages. As recently as a couple years ago it was how the natural history museum in DC managed their site content.
I know a website that is still maintained regulary and built with dreamweaver 2003