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I’ve been told that, but I haven’t seen any kind of evidence supporting the theory.

The example you're discussing is the evidence. Reorientation does not mean fully reoriented. It means things are changing. An example that shows a changing relationship is evidence that relationships are changing. This remains true even if you don't like the type of change or if things go back to the way they were.

At the moment we are still witnessing quantitative changes. Enough of those and we will see qualitative changes. The fact of quantitative change does not discount the fact of change i.e. reorientation.