Can you then give me your definition of "lazyness" The dictionary just gives me "the quality of being unwilling to work or use energy; idleness."
And i don't see it anywhere in this situation. They're asked to do a job a certain way (or for management, to make sure it happens in a certain way), and they do that to the best of their ability.
Could they do it better from an performance/software engineering standpoint if they had infinite time/budget? for sure. But that's not the world we live in.