Actually it reeks of conspiracy. Regardless of what one may think as far as whether Terri's feeding tube should be reinserted, it's blindingly obvious that her scumbag "husband" is hiding something. My guess is that some fairly large life insurance policy payouts are in the works, and Greer stands to get some kickback from it.
As in so many other facets of life -- follow the money.
Whatever M. Schiavo is or isn't Greer isn't acting like a mere arbiter of the law.