It’s not really that Concord was bad, and more that it was unremarkable.
The game was trying so hard to be a clone of Overwatch that what they ended up with was the gaming equivalent of those knock-off GI Joe clones your mother would buy you from the dollar store. Except that Overwatch is free, and Concord was $40. Why am I going to spend more money on getting the knock-off version?
Copying what works only gets you so far. At some point, you have to actually step ahead of the thing you’re copying.
“You see, we like money…”