@Blail Blerg Instead of trying to nerf 4 squads with a complicated rewording of Rieekan, wouldn't it be easier to make him like Hera? So Rieekan declares 2 squads at the beginning of the round and they get the ability. Still works normally on ships.
This allows Rieekan to still work with the Escorts, so your opponent will inevitably get tied up for at least 1 round. After that, you have to be smart with your engagement instead of rushing everything in.