Why do I find that all the meat and fish items are "in store only". Why use pick up ordering if you also have to come in to the store. Are you trying to stop people from ordering for pick up?

I think the general reason for this is that pickup time can vary greatly. You don't want your meat/produce sitting around for any length of time. That's my guess..

I honestly get any my seafood from Safeway since they have an actual butcher/ fish person on site

I think most superstores have the same policy. If you want meat or fish, they don't qualify for pick up just like Target. It's probably because where they store the pickup item, there isn't a refrigerator to keep those item in.