Was Rivera asked about the mystery review? Was there an explanation? I assume if someone ruled it incomplete on the field there would be video of it (back judge running up to confer, etc).
All I know is before Slay went down injured, the side judge called it a catch, ran and spotted the ball, and called for the chains to be moved. If the Eagles thought it wasn’t a catch, before the two minute warning, they should have had to challenge it. Given there was no video evidence to that the ball hit the ground, the call on the field would have stood.
This is one of the most blatant screw jobs the refs have ever committed against Washington because it wasn’t just a missed or bad call. It was blatantly breaking the rules to benefit the Eagles.