"flawed response" is correct and usable in written English.
You can use it to describe a response that has one or more deficiencies. For example, "Although I tried my best to answer the question, my response was flawed and I could have done better."
A Civic report on the violence in Juba found nothing new in the UN's flawed response.
Mr Gove's decision to send the former Met counter-terrorism chief to investigate the Trojan horse affair was a deeply flawed response to allegations that a small group of Muslim extremists was running an entryist plot in some schools.
Another flawed response is that Apple has the users' interests at heart — after all, they're restricting how much user information publishers can gather (and re-sell), and they're making the in-app purchasing process as simple as possible.
Nineteen months after its brave but flawed response at the World Trade Center, the Fire Department is developing a new approach to large-scale disasters.
Many officials said they hoped it would reduce the mistrust and miscommunication that has surfaced at emergency scenes for generations, and that contributed to the flawed response at the World Trade Center in 2001.
That didn't stop the former director general put out a self-serving statement, arguing that the Pollard report revealed what he had believed all along, namely the flawed response to Savile reflected the BBC's silo mentalilty.
But if you have your character make a justifiable, though flawed, decision in response to a threat, your reader will be more willing to believe and root for that character.
The response was flawed, it took two weeks for the first isolation ward to open and health workers were initially reluctant to work in it.
But even a systematic approach has been flawed because some unrecognized response was not accounted for in the pre-clinical model, a limitation of models in general.
According to Mendelson the official military response was flawed.
In this respect, a flawed iron deficiency chlorosis response in Mo17 might lead at both iron conditions to increased production of phenols that, after being excreted to the rhizosphere, solubilize Fe(III) from the soil [ 6].
