Plain English vs. HR-speak

I asked for feedback from a recent job application. I was not short-listed and wanted to know why. They gave me three reasons. Numbers one and three were, in the main, not unreasonable. Number two read as follows:
'The panel felt that...you did not show evidence of....securing, managing and implementing significant and effective change processes to ensure the delivery of effective policies and plans to achieve demonstrable continuous improvement'.
Where to start? The meaningless vogue modifiers, such as 'significant' or 'effective', the latter used twice? What subtle differences are there between securing, managing and implementing change processes? In any case. what's the difference between change and change processes? What fantasy world do they live in, where improvement is always continuous?  The possibility of  demonstrable continuous improvement suggests that there could also be continuous improvement that is not demonstrable.  Why would you deliver a policy? What monster of a candidate did they find who could produce evidence of this stuff?