CW they somewhat avoided that in season 1
And I'm not mad at them for doing it..im mad at when it's done. More so, I'm just mad that Diggle is in his feelings about it because it's out of character. Felicity being upset? cool, rock with that. But Diggle is a soldier, he understands strategy and doing some things you don't want to do in order to get the job done so him being upset just seems like adding drama for the hell of it