lastmanstanding - "...I hope their lawyers walked right in there and laid it down."
IMO, the really interesting question is...
...why is said tax-exemption (not having to "pay back Caesar's things to Caesar", I might add ) so important to "God's Exclusive Earthly Organization"...
...so important, in fact, that if push comes to shove, they'll show their throat to "Satan's World" (whilst hoping the rank-and-file don't notice)?
Occam's razor? The Org has allowed its "business model" to become dependent on said exemption...
...or to put it more succinctly, the Org's survival has become dependent on it.