Both had career best years when the Tohu/Hiku combo was inside them. Maumalo's form skyrocketed once SJ left but Fusitu'a was largely reliant on SJ creating his opportunitiesWhat really happened to Maumalo and Fusitua? It's like they totally lost their careers during that COVID spell when they should have been in their primes.
Also at age 30 and 31, they're not all that old