Good post. It's great to see something other than the usual 'derp Ross doesn't play da youf' BS. I think this is a real risk of the team defense first style of gameplan and I seriously wonder if it's had an impact on the flair of players like Hill, Walters, Ballantyne etc.
Its not just one thing, it is a combination of KPP players getting older or retiring, not enough good ones coming through, and general exhaustion lower output across the board. It can happen once a side feels their chance of a flag is going or gone, they can drop from being top 4 to well outside the 8 very quickly.
I do think Freo will turn it around to some degree and will turn it on at times and probably claim some big scalps here and there, but it will be hard to make the 8, especially if injuries keep mounting.