Bo-Katan reuniting the Mandalorian tribes somehow seems like it should have been a bigger deal than what we saw. But apparently that's done, so... cool.
Moff Gideon finally dying and the Mandalorians taking back their home planet... ditto. It's done, cool, but almost seemed too by-the-book the way it played out. They had to fight, they did, and won. And it was fun, so... cool.
I think Din Grogu is fine. We didn't know Din Djarin's name for a long time; he was just The Mandalorian. Nor did we know Grogu's name for a long time; he was just The Child*. After enough time to acclimate to those names, combining them seemed logical and doesn't bother me.
*The Child. Never "Baby Yoda". NEVER!!