Sloth and the Hindrances
Yoniso manasikāra as such means “directing the attention to the roots of things,” that is, observing
  phenomena as they truly are, as being characterized by impermanence, unsatisfactoriness and not-self.


Yoniso Manasikāra Sampadā Sutta

You should know the experience of the hindrances are also impermanence, unsatisfactoriness and not-self.


  If so, would being moved and experiencing awe counter sloth as well?


Stimulating the mind may result in sloth on the downturn when stimulation is ending.