Not sure if that is intented ...
But i recall someone around here talking about Darkness being wrong, since its suppose to work either as AoE or as a targettable buff with AoE Effect (like reverse version of Light cantrip) ...
That someone also claimed (if i remember it corectly) that this is core of his favourite play as a Warlock, that he casts Darkness on himself, and then simply moves with it ... having all benefits all the time. O_o
But i believe its worth mentioning that Darkness in tabletop can (unless i remember incorectly ofc) be cast out with light producing spells (cantrip included), wich is impossible in this game as far as i know. O_o
You are correct in that Darkness can target an area, or an object, but the darkness spell can only be canceled out by the light-producing spell Daylight, a 3rd level spell that specifies that it removes the effects of Darkness. Darkness removes all sources of non-magical light when it is present, and any magical light that comes into contact with it lower than 3rd level is dispelled. Darkness is a very fun and useful spell for how it functions in 5th edition for anyone with devil sight, which is now possible that anyone can have devil sight.
Edit: Also I'll include the new blind-fighting style introduced in Tasha's for 5th edition works very well within the darkness spell as well.