When adding a new product from the location menu the flow is:
Click new product
Add some details
Save changes
Close the edit window
Search for new product
Click on product
Click "Edit Business settings"
Then edit business settings.

The old method cut out like 4 of those steps by allowing you to edit the business settings as soon as you added the name in the location menu. There is just way too much clicking involved in this flow.

I understand that adding from the business menu works faster and takes care of some (But not all!) of the location details. But it is usually much faster to work from the location page, and I can't get to the location page to set inventory from the business page, so then I need to go to a separate location to adjust settings anyway.

Overall, a much harder experience to add/duplicate products. It again shows that people at Boulevard aren't using the product on a daily basis. They would have quickly discovered that this is not as user friendly as it used to be (not that it was a shining example of ease before)