Your last sentence is more relevant than it seems on first glance. If the majority of Target shoppers are looking for the seasonal section and not milk, then it's actually pretty equivalent.
I always find this interesting, as Target is pretty smart about merchandising. My guess here is that they know that they usually (at least around my hometown) are not top of mind for grocery. Milk is probably a trigger.
Seasonal stuff needs to be in an area of the store they can close off for a few weeks everytime the season changes while they redecorate. During those times they want the seasonable stuff to be out of the way so the construction efforts do not get in the way of customers.
I don't know if this is their logic, but it makes sense.
Definitely down to personal preference, but the milk at our Target is generally in better condition, tastes better, and lasts longer than the milk from Safeway. And the shopping experience in general is much nicer than Safeway.
Safeway is pretty much the bottom-of-the-barrel grocery store in my area, so while I'd agree with that comparison of Safeway to Target, it's less true of Target than just about any competing conventional grocery store.
It's not weird, there's a good reason for it. As I mentioned in a previous comment, its because the milks with a longer shelf life are UHT pasteurized, which uses higher temperatures for a shorter period of time than traditional pasteurization. They are typically labeled "ultra pasteurized." This extends the shelf life of milk.
Additionally, any time you see milk that is shelf stable (doesn't require refrigeration until opened) its been UHT pasteurized and packed in special aseptic packaging.
And, yes, I've noticed that, for some reason, organic milk tends to be UHT pasteurized more often than non-organic milk.
Then again, I guess if you're going to target for milk you're probably doing it wrong...