The whole dev saga reads like what you'd present in a project management course as a negative example.
GaaS are difficult to pull off successfully, at the best of times. They have a higher chance to stick the landing if created by a studio who is aware of the intricacies of multiplayer. Seems like this was not the case here.
The choice of franchise was also bad. Suicide Squad has generally bomba-ed whenever anybody tried putting out something, so the odds were against a new installment of this IP from the start. I'm gonna go on a small rant, and state that the only part of that franchise anybody genuinely gives a shit about is Harley, and, in 80% of instances, it's only because of coomers imagining her "an' den dey hyu'cked"-ing Ivy (thanks in no small part to the animated series). Situation which the game almost-deliberately removes, by making Ivy a small kid.
It was bad calls, 100% of the time, all the way down.