You have to mention family in the imm5645 form, failing to do so isn't misrepresentation? what is misrepresentation? the form asks you how many siblings you have? you say I have 2 siblings, while you have 4 siblings and 2 of them are in Canada, but you don't want to tell IRCC about them. Here you are mispresenting yourself.
You need to understand that one a law is something, and implementation of law is something else. You can get away with withholding or misrepresenting something, but you may also be caught. When caught there are consequences to be faced.
You are absolutely correct - that is misrepresentation cos you willfully withheld info which you were asked to provide. It doesn't matter which country your unmentioned siblings are. The mere fact that you did not mention them is misrepresentation.
That's not what I mean though. In the form, you mention your siblings and provide their addresses, wherever that may be. If you have siblings in Canada, you provide their address. If they are in US, you do the same. It doesn't matter which country they are, if you provide the wrong address/information about them - you are already guilty of misrepresentation.
Lots of people have siblings in Canada, did not mention them in their SOP and got their visas/permits with no hassle. I have siblings in Canada and I listed them in the family info form. But I never referenced them anywhere else - not in my SOP or any other document submitted. There are threads on here saying people will get their visa refused or worse, banned for misrepresentation because they didn't mention their PR-holder relatives in their SOP. Same thing is being said if you don't mention your EE profile in your SOP. This is not true and it just raises the anxiety level of people, even causing them to overshare information in their application that might even be detrimental to them.
While completing the questionnaire for your SP, you will be asked if you have family in Canada. IRCC specifically tells you what they mean by family in this case and it does not include siblings. If they really wanted to know if you have
extended family in Canada and if that impacts your application, I believe they would have asked.
I do agree with you re: the letter and the spirit of the Law as this is a universal concept. People will always find wriggle room in the interpretation of the law in a courtroom.
Thanks for the chat.