I completely agree, the story up until the ending of his personal quest is so well done, but it's undermined by an ending/epilogue that falls flat. It almost backpedals him into a comic-relief or shallow character after all that. After conversations like
the one at his grave
I really feel like we should get more that shows the depth of the relationship that's formed. It makes it disappointing to even finish the game at this point if that's how it ends, to me. I really hope they'll hear us and do something about it... His story is honestly one of my favorites ever and it's a shame to not do this incredible character and story-arch justice with a satisfying, equally strong and fulfilling conclusion.

And you can't convince me that after everyone was so proud of him for not ascending they'd just let him run off like that without a single word. Much less Tav!