I apologize for not reading the entire thread first, but I have witnessed an architect's perspective.
The tee, which is exposed to tee shots, should be left alone in most instances. More often than not, the firing tee is the problem and the solution. So long as it does not compromise design intent, clubs should move the firing tees to the left or to the right (as the case may be) merely 15 yards to redirect angles of play away from the exposed tee. Often you will learn that you actually have returned a hole to its original line of play.
However, even if adjacent teeing areas do compromise design intent, such may be better than forced, conspicuous safety buffers in the form of trees, hedges and shelters.