To be honest I think this falls to something that's one of the strengths of XF...it's very easy to modify your templates and remove it from where you don't want it.
Microsoft became the most dominate software provider in the world through the creation of Windows. Why? Windows allowed non-programmers to be able to effectively use computers.
Right now a non-technical person cannot set up or make changes in XF, nor any forum software that I am aware of. What is a company made "windows for forums". What I mean is...a forum suite that allowed administrators to make all the changes they desire without ever touching a line of code?
This breadcrumb discussion is a bridge into that thinking. If you tell an admin "oh, you don't care for the breadcrumbs? Uncheck the breadcrumb box" then it's no problem at all. If instead you say "oh, well figure out the id of the node, find the code template, then copy/paste this code in, and adjust as needed....oh and again after every forum update", there are a great many people who will shake their head and say "no way, it is beyond my skills".