If we're working under the assumption Gawr Gura's lessened streaming routine is not due to her health condition (Which we hope are improving and recovering), then that leaves one explanation left: Gay Sex.
More precisely, Gura is stuck in a threesome between her, Amelia Watson and Ninomae Ina'nis. Stuck between the tentacles of eldritch and the Br*tish. Going more drenched than the sunken odes of Atlantis. Getting each other wetter than ten minutes out in London.
Does it match the routine cycle of these members? Given how often idiots whine of EN member's lessened times of streaming, a clear pattern forms. Their streaming time usually occurs in cohesion, a continuing trail: Ina, being the one with the most stamina, somehow, starts first at JST early morning in her smoothie style smooth voice. Gura follows after her short nap at a two to three hours time around the time Ina go back to her snuggles. Then after Gura's stream end Ame also already woken up, done their midnight snack, and then stream comfortably between her girls cuddling her. After this routine continues for a few weeks they go back into dormant and goes back into each other for hours.
Does this constitute a secret reason? Obviously, this is their private life and none of that they need to reveal to us. It's none of our business whether or not they're enjoying each other's sexiness.
Overall, the gay sex explanation gives the most sense: It matches the pattern of their behavior and does constitute why they aren't going to reveal the cause, nor do they owe us such reveal to begin with anyway.
