Your own exceptional grammar renders your first sentence incomprehensible. Did you mistakenly type "as" when you meant to type "is"?
The first paragraph of your post could be clearer, also.
Whereas most grammatical errors I see on FR are merely annoying, I'm afraid that your grammar actually obscures your point. True, I am getting on in years and thus have lost numerous brain cells over time. Still, I think it would be worth it for you to rewrite your post because it seems like your point would be useful if only it could be made more clearly.
The blame for the problem however belongs to the proofreader.
As to the meaning of the reply, an open question of fact must be determined by the trier of fact but questions of law are resolved by the judge. The judge here is saying that she cannot from the pleadings alone conclusively find that there is no issue of fact concerning the alleged fraud which has been raised by the respondents as a defense. She cannot simply conclude that a fraud was committed, or not committed for that matter, that remains an open question to be decided by a jury or a judge, if sitting without a jury, after a plenary hearing.