If you want to risk messing around with your application, intentionally doing poorly on the exam, and choosing the lower score (even though the instructions explicitly tell you to choose the higher score), then go for it. Nobody knows if trying to lower your score would count as misrepresentation, but considering the intent, I wouldn't be surprised if it is.
I say the same thing for people with a measly B2 in french and picking that as their first language to get into the score range of Ontario french draws. Especially considering the EE profile creating page mentions to choose both options and pick the higher score. Yeah good luck living in fear of this ever coming up in the future and having to explain why you intentionally manipulated your score.
At the end of the day, you're trying to game the system. To be fair, the system happens to be a little broken right now, in the sense that lower scores are being rewarded and higher scores are being punished, but fact would remain that you tried to game it. Whether or not that will count as misrepresentation, I have no idea. To me, the risk is not worth having my application getting rejected, or worse, getting a PR and then this being brought up and affecting the citizenship application in the future.