Maboroshino was perhaps Obito's most level headed summon so it made sense that she kept her nerve and even better in this situation, that she kept pace, keeping close. She also made sure that they weren't spotted, reflexively covering for them.

He kept careful track of where they went and noted the progression of the path, settling himself into the ride otherwise. WHen they landed, he was quiet, only thanking his bird and releasing her to go home.