Stated "MOST GOOD" shops. Not that most shops are good. I agree with you most LFS are a poor excuse for aquarium stores. The only thing I buy from LFS are hard & dry goods."Most"? Based on shops up here, I'd change that to "very few".
Fish being shipped are normally not fed for a couple days, allowing them to "purge" their gastrointestinal tracts and reducing waste products excreted in the bag. Not really comparable to fish from a LFS that may have been fed minutes before being netted/bagged.
But, yeah, for a couple hours it doesn't matter. Seven hours is pushing it a bit.