How much are the Flames going to spend on goaltending? Between Quick, Rittich, Talbot, even if they dumped him in the AHL, plus the extra $1m retention you could say is technically being spent on goaltending, that's like $11m. If I'm the Flames, I'd rather have old man Lucic than old man Quick. You can hide Lucic much easier than Quick.
Lucic and Talbot for Quick starts to make more sense, just from a roster perspective, but even then, that still doesn't make a ton of sense for Calgary. Have to start adding to the deal, on both sides, and complicated, multi-player trades are a rarity these days thanks to the cap. Usually things are fairly cut and dry. Lucic is also owed more money than Quick, so the Kings don't even get cheaper as they rebuild, which is usually not the way you want to go.
Not sure those two would form the basis of a trade, let alone be the two main pieces. Lucic for Neal was F for F, which is easier to slot. That's why when a goalie gets traded, there's usually one coming back the other way.