A waveeditor inside a DAW is very helpful anyway; it's the place where you can chop up source files to become loops, and where you can throw in stretch markers to conform fluctuating tempo in the source to your beat. And once you have that going, there's very little in the way of having a template which only shows you that.

In Audacity, our goal is to keep it extremely approachable for beginners, so for us the idea of having one view of a clip in context of the project and a different view in which you only see the clip is something we'd rather not do. A wave editor window or panel separate from the main project timeline is however the industry standard, and as such it might be exactly the sort of feature which would be very at home in Ardour.