The original ACE Study examined only harmful health (mental and physical) consequences, but not how resilience factors ameliorated health consequences. However, I wouldn't label the ACE Study has having failings. It was a start, and subsequent surveys are including other ACEs, including bullying, racism, witnessing violence outside the home, living in an unsafe neighborhood and involvement with the foster care system).
Also, because of the great progress that's been made in understanding ACEs, their consequences and how people, families, organizations, systems and communities can heal, people use the term "ACEs science" to include much more than the original CDC-Kaiser Permanent ACE Study.
ACEs science includes the epidemiology of ACEs (the original ACE Study and subsequent ACE surveys), the neurobiology of toxic stress, the short- and long-term health (mental and physical) consequences of toxic stress, generational trauma (i.e., the epigenetic consequences of toxic stress), AND resilience research.