Yes. It is a beautiful verse, y not.
The sutta is about the merits that one receive due to punna kamma (good deeds) sooner or later. That comes from the whole sutta, even though the verse does not say it specifically.
So, I think the meaning of the verse will be more clear this way:
Human good fortune,
delight in the world of the gods,
even the ATTAINMENT of Nibbana,
through this merit they receive from good deeds.