You see, ritual casting and sorcerers don't mesh well, sorcerers are supossed to be more about innate magic and self-learning, while rituals are precise mechanical and reliant on tradition. If any non-combat spell becomes a ritual and only a ritual, you are not only giving wizards unlimited magic, you are also forcing evey sorcerer to carry a ritual book or become a third rate caster. "Yes I'm a sorcerer, magic flows through my veins and in order for me to do anything that isn't frying a a kobold I need the same exact book and components any wizard, no actually any mook with the ritual caster feat would use". Doesn't sound apealing at all, specially since by the dev team record they'll be bent on giving the sorcerer the same exact hit point and attack progression (if not actually giving them a worse one) and call it a day despite the fact their magic is at most one tenth as powerful as a wizard's with things as they are.