I don't think that a single helpful line is worth arguing about, even if it's an impossible task to have it list every possible instance that someone may be able to get a spell.
What I'd find more interesting is a discussion of what the spells DO.
Like, is it okay that the Mass healing spells scale with single dice while the single target healing spells scale with double dice with much lower spell slots? Also, do we need to do d4s with healing Word if it's going to use 2 of them? I'd prefer d8s in that case.