The wording seems right. It says, impersonally, 'did not open properly' and not: 'the crew did not deploy them properly...'.
After all, it may be possible that the lever was duly actuated, and -for some reson- the flaps did not extend... It's easier to believe in a distraction, a human error. But other explanations cannot be completely dismissed. At least, for the time being...
Regards
XXXavier