Ironically one of the things that really helps counter this is a ritual called "Comrade's Succor". Often it's not the fighter who needs to stop for the day, it's the rogue who keeps getting pounded on, or the wizard who the fighter can't keep mobs off of, 'cause they have less healing surges to throw around. So this ritual can keep everyone going much longer.
How about this as a suggestion? Everyone can cast rituals, with or without the feat or the appropriate skill trained. Doing so requires components OR healing surges. This is the 'sacrifice' required to make the ritual work. Rituals need SOMETHING to convert into the raw energy needed to power them, whether that's components or healing surges, doesn't matter.
But if you have the Ritual Caster feat, you know how to draw on the energies all around you (makes sense given the Arcana training required) to substitute for the component or healing surge requirement. You can do this once per day, per tier.