- Prayer of Healing becomes a useless spell.
True. Remove it.
- Goodberries becomes a useless spell
Do we need it?
- Every food instantly becomes just junk to be sold.
Food shouldn't be healing, Make it interesting or remove it from the game.
- Every basic healing potion becomes just junk to be sold.
They heal more than a cantrip, and you may need more than that.
- Short rests lose a part of their value.
Without hit-dice for healing, they're kind of broken anyway. But yes, if you have this cantrip a short rest should heal you up all the way.