Yes. If you fail to disclose on your medical application something which is relevant, you could find yourself in a very unpleasant place. Notwithstanding a possible prosecution for a fraudulent application, you would almost certainly run the risk of of losing any benefit gained. God forbid you should ever be involved in an accident or incident where your medical history and subsequent disclosures would provide an opportunity for an insurance company to absolve their own potential liability and loss.
The question wasn't answered because it was a fairly stupid "hypothesis," and because as already explained, the condition when properly treated or assessed would probably not be disqualifying.
Oh and by the way....
You are welcome!