The observable internal progression is:
secure journeys → command to worship → identification of the Lord by provision and protection. This sequence is clear without requiring any single disputed reconstruction of the opening lām.
The placement after Sūrat al-Fīl also permits a thematic association: protection of the House is followed by the security enjoyed by its people. Thematic coherence must not be confused with a claim that every syntactic detail of two independent surahs forms one obligatory construction.
Start analysis with the established within-surah relations; then identify possible connections across the surahs on a distinct interpretive level.