Perhaps the only thing "bad" about it is that you're simply not used to it. I can certainly think of someone used to that UI thinking the same thing about today's interfaces, with disappearing scrollbars, flat design and confusing icons.
I have the minimap configured on the left in vs code and use it as scrollbar. It’s quite nice actually.
I'm not saying it is perfect, but it was not that bad, really. It's only one level down. And then you could also use a keyboard shortcut for it, which is always faster than anything mouse-driven if your hands are on the keyboard, which they would be, if you wanted to type a URL.
And even if you had to use the mouse, there is an interface feature we have lost: tear-off menus. If you found that you needed something in a nested menu often, you could simply tear-off that submenu and pin it on your desktop so you can always have direct access.
I miss that.