Many of our encounters are fairly tough, but Cure Wounds is not the solution for us. It wastes an action that can be used to do something else (like attack or help or disengage).
Really? Dropping 2 average points of healing at range with a bonus action and typically without using any part of the Move action is less bang for the buck?
+2 hit points for ally vs. attack enemy and possibly change action economy.
Hmmm. That's a tough one.
Wow. I don't understand this POV at all. The +2 hit points are typically only useful out of combat. 2 extra hit points will rarely keep someone up if they are attacked again, and higher level slots are really only needed if the foes do a ton of damage and you want the PC to be able to absorb at least one of them. Otherwise, higher level slots are mostly a waste.
For our table, Healing Word is a LOT more valuable in combat than Cure Wounds.
Now granted, at high level, using a 4th level slot for Cure Wounds over Healing Word is 8 extra points of healing, but it still requires an action in combat. At high level, a single cheap Healing potion could make up a fair portion of that out of combat.