Most people who shop offsite have cars - and wouldn't be familiar with Lynx and what's where in relation to its stops.
You'd probably do best by opening the Lynx site, the another browser window to find specific store locations. Compare those locations with the Lynx routes, and don't limit yourself to just the two you mention. Be prepared to transfer.
On the other hand, I'm positive the 111 makes/has dozens of other official stops in addition to MCO, Florida Mall, and Downtown Disney. It's entirely possible that route will serve you. Golynx.com has a wizard: you put your start and end locations, and it will give you routing information.