The problem was the playtest sorcerer was a reverse gish and worked fine for a character who gets more martial/monster as they lose spell slots. It works fine for a draconic Sorc, but it feels off once you move to the other subs. Some sorcerers are just casters born with unique subsets of magic: wild magic, shadows, storms, order, divinity, lunar/cosmic, etc. A sorcerer should have the option to become a monster, but some people want to a play a theme caster and the sorcerer should lean on having lots of options to expand that theme.
I just don't want to lose the option to play a sorcerer like a regular mage with a unique theme and be forced to transform into dragons, Slaads, shadow monsters, etc as I level.
I guess it will depend on how wizard and sorcerer spell prep changed.