I think the disconnect was more with designers. They wanted visual tools back in those days and had no time for CSS and JavaScript. Adobe/Macromedia gave them what they wanted and also entrenched their commercial position this way (which Adobe already had in the paper publishing market!). It took a long time for the graphical guys to come on board with the open toolchains.
Macromedia wasn't a bad company as such as they did make the excellent Dreamweaver which did promote open standards, but Adobe corrupted them badly.
And I recall it enabled a progress bar, too.