Again, every character on the show has to be stupid in order for the plotpoint to work.
Gladys, the star 'witness' against Jason, was also complicit in the Dev immigration fraud. If Cyrus exposes Brando, he loses Gladys too, and no one can do that math.
( That is, if any federal agency even cares about one dead teen)
I'm just relieved that Wiley finally was put to bed, it's hours after the Bernardino dinner and people are still dropping in at the boathouse so Michael can talk about Willow.