Can a Totem Warrior Barbarian choose a second Totem Spirit in place of an Aspect of the Beast?

Is it possible for a Totem Warrior Barbarian to select another totem from level 3 instead of the Aspect of the Beast at level 6?

At 6th level, you gain a magical benefit based on the totem animal of your choice. You can choose the same animal you selected at 3rd level or a different one. (Player’s Handbook)

This means that it’s possible for a Barbarian who selected the bear on level 3 (resistance) to e.g. select the eagle on level 6 (eyesight).

However, is it possible to select the eagle level 3 upgrade (Dash bonus action) on the Barbarian level 6 upgrade, when the bear was selected on the level 3 upgrade? As the Totem Spirit of level 3 is "lower" in some terms, I wouldn’t mind to allow it. This would create a level 6 Barbarian with resistance and Dash as a bonus action, a pretty fast tank character (for example).

And is this also valid for level 14 Totemic Attunement, thus allowing to select another (not yet selected) totem from the previous levels?