I guess the outrage is only applicable if conservatives or conservative politics is involved. Liberals, as usual, get a pass (because their heart is in the right place, i.e., we agree with them). (/sarcasm)
Lets keep the issue clear here:
It's not a violation of the Constitution to preach about candidates in the pulpit.
It IS a violation of federal tax law to do so if you claim federal tax exempt status. (And perhaps campaign finance laws, too).
And as you said, Barry Lynn is usually the first to scream about this sort of thing if it goes against dimocrites.