Any system that is missing a task bar/dock/whatever you call it is a non-starter for serious work. That's a major regression that completely kills default Gnome, and shows just how incompetent their UX designers are. Even the Windows 8 designers knew better than that, and that's saying something.
oh yeah I forgot about this but I absolutely have a grip with this.
Though I'm not 100% in line with this because in i3 I have no taskbar but it's perfect for serious work because:
1. Each app / type of app I use has its own workspace
2. The indicator of workspace only shows those which have a window on it, even if they always exist
That pretty much replicates the taskbar experience but with the added benefits that I choose exactly how I "group" those windows
Why would I want a "task bar/dock/whatever you call it" taking up space on my screen when I have more interesting things to do and look at?