Disappointing to see a writer for NPR advocating cultivating an invasive species.
First of all, even where they're not invasive, the period of time that blackberries bear fruit is extremely short. Blink and you'll miss it. Not to mention you have to pick them at precisely the right time and they are extremely perishable. I'm talking about a period of a few days on wild blackberries.
Second of all, they need to be growing in full sun to get the best yield. Of course growing them in sun means they'll rapidly spread to unwanted parts of your garden.
So really what it means is you have to have a full sun yard and forgo plants of real value such as trees, better food crops and ornamentals and constantly be pricked by the thorns all just so you can have some berries for one week of the year if you're not on vacation and don't miss it and the birds don't get to them first?
No thanks.