I think the two series are too intertwined to really separate. You can’t tell the story of Boba Fett without season 2 of The Mandalorian. So it makes sense that we get a step forward for Din Djarin in Boba Fett. This is really a hallmark of Filoni’s story telling. it was also common in the Russel T. Davis Doctor Who seasons. Blink being a truly outstanding one. And having watched a lot of relatively modern TV lately, I haven’t had any problem with the story telling style. Book of Boba Fett has been one of the better series lately.