she may just tele portal herself to another dimension to recover as BZ recommended..
but kaguya been blitz by sasuke in that gravity dimension, kaguya cant move and avoid that.. so the faster way is to switch dimension with everyone...she wont make it if she tele portal at that moment.... maybe sasuke anticipate that, and force kaguya to do the switch..just maybe or he just to try one shot kaguya once his eye power returned
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see..key moments,
1)sasuke did rinne tele beside kaguya,he is not moving an inch ,he is not on the air.. his feet well firm on the ground.. he is just one arms length to one shotted kaguya
2) the gravity holding kaguya's off, so kaguya changed the dimension first... then avoid the chidori..
*is it that hard to comprehend? or am i wrong..