Please note that Strength is a dangerous thing to dump on halflings due to their carrying capacity penalty. A 6 str halfling sorc might be medium encumbered with just their spell components.
A halfling sorc with dragonmarks is a safe choice for a new player nuker build (without access to warforge). It is unoptimized at higher levels because the DMs drain other more important feats, however it is a verrrry cheap build to play (since most new players have no money). This allows them to learn if they can handle wands/heal scrolls by themselves with a bigger margin of error.
Another point that I'd make is that most sorcs carry a complete loadout of defensive spells (known or scrolled) and very few offensive spells. The number of level 9-14 Arcanes who do not have displacement is abysmally high. And, in my experience, their relative survival rate suffers as a result (we call most puggee arcanes/rogues "Chunk, Chunk, Dings").