DISCLAIMER: I am in no way claiming that the beast tribe quests are non-canon.
With that said I'd like to point out that in our side-quests we sometimes do the same quests multiple times. For this I will cite the Rank 5 Ixal quests.
In those quests you have to get mats not just for ship parts, but for another thing that winds up aiding someone in need (yo only have to craft the ship parts BTW). With that in mind, while I can buy that an orphanage can get more rooms, I on the other hand cannot comprehend the sister of the person you have to bring the parts to having multiple babies on a daily basis (though as far as I know, she could have multiple sisters)
Also due to...
Tataramu being "grounded" (closer to the "You can't leave your room" sense than the "Accept Titan as your Lord and Savior!" sense)
he cannot help you with the Rank 5 quests, however doing the preceding quests still implies he pulled some strings.
This begs the question, we know that the quests are canon, but are the multiple times we do these quests also canon?