Is it valuable to have a request in the LHP to have the divine realm backstop the practitioner to bridge any gap, if there is any lapse of focus and attention during the session?

This would be helpful, if only to reassure practitioners they have not lost the benefit of their work during a session if there is a realization, suddenly, they have let something slip by while their mind wandered; as long as this is understood through your training, it is not to be taken for granted and thus encourage laxity.