On 17 May, FAA signed the official authorization for flight in controlled airspace at fixed sites. Although I've attached the document, I will include where to find it so others can find it for themselves. It makes it abundantly clear that AMA's "fly was you always have" for affected fixed sites - is not true. Beware of following AMA's advice if you're flying at one of these fields. The attached memo makes it clear that if you're not strictly adhering to the conditions in this formal FAA Authorization, you are violating the law.

This website:
https://www.faa.gov/uas/recreational_fliers/

Under the "Here's what you need to do:" go down to just past #11 and click on this link:
Read the Authorization for limited recreational operations as described in section 44809 (PDF).