On a side note, and in an attempt to be productive, I do this as well and I have noticed that it changes the relative importance of a lot of spells.I concur.
This is why I strongly disfavour humanoids who reproduce in a "normal" way, have free(ish) will, a child stage, non-combatants, and so on as block "Evil" factions. Because otherwise it's very hard to work around situations where the PCs are likely to come into contact with the non-combatants, question whether the humanoids really went to be there, and so on.
Heat metal is a pretty useless spell when you very rarely fight creatures in metal armor, and most fiends are resistant or immune to fire. Hypnotic pattern is extremely useful against the very many monstrous or unintelligent opponent that don’t know to shake an ally to awaken them.