Shopping at that Publix is convenient if you’ll be taking 528 to I-4 to WDW. We prefer 417 to Osceola Parkway (we’ll do anything to avoid I-4), in which case the Orange Lake Publix is more convenient. So you’ll want to map your route before deciding where to shop.
If you're going from AKL to Publix, I agree. If you want to stop at Publix on your way from MCO to AKL the Publix I mentioned is faster and is easier. Its the store used by drivers. The N route with a stop at that Publix will show as the best way using Google maps.
People have their favorite routes. An extra few minutes isn't the end of the world.