PHB pg 60 lists the domain spells that Life domain clerics gain access to each odd level from 1 through 9, but these spells are all spells that clerics automatically have available anyway. For example, at level 3, all clerics learn 2nd level cleric spells and at level 3 when you've chosen Life domain, the two spells you gain access to are Lesser Restoration and spiritual weapon. But these are both included in the 2nd level cleric spells that you would have access to automatically under any other domain.
Conversely, other domains get access to spells not available to other clerics at odd 1-9 levels (such as Mirror Image and Pass Without a Trace at 3rd level for the Trickster domain, just as an example).
So do Life domain clerics just get the short end of the stick? Or do those Life domain spells in particular get some sort of bonuses or something?
Best Answer
That's not how cleric spellcasting works
While clerics know all the spells on their list, they can only prepare a certain number per day: (PHB 58)
However, domain spells don't count against your preparation limit (PHB 58):
Thus, getting these domain spells allows you to keep them in reserve while preparing other spells, increasing the variety of spells you can cast per day (but not the total number, which is limited by spell slots).
You're 100% correct that life domain clerics don't get spells from other spell lists, but I'd dispute whether that means they get the short end of the stick, for the reasons listed above.
Additionally, life domain clerics do get bonuses to their healing spells, both domain and non-domain, through their Disciple of Life and Blessed Healer features.