To me RotP is similar to the Paladin's ability to use LoH for Raising. If you have no other way to raise someone these are alternatives.

But I agree that it is prudent to have at least one raise dead ability in your reach - be it a rechargeable item like GS positive item (only need tier 2 to get raise) or Named Item, or scroll, or consumable token/gem from turn ins, or action point available skill.