I am inclined to think it probably is not PFS legal, but wanted to test the waters in case I have it wrong. Hidden priest requires you to give up, "one of the cleric’s two 1st-level domain powers (her choice)," and then the same for the 8th level power. Evangelist limits you to one domain, would this count as modifying the same feature? I suspect so.
Unfortunately yes, as domains are 1 class feature.
correct Andrew. I should have been clearer in my post.
Thought as much, but was hoping I was wrong. Thanks guys I appreciate the confirmation. :)