I would ask yourself this - how much risk are you willing to accept? If a law says there is a requirement of 7 days required within the 1st year, simply because AIMA has chosen not to enforce that requirement doesn’t mean they can, will or will be allowed to continue to do the same. So, if the government continues down its anti-immigration path, scrutinizes visa compliance and decides to use that as a reason to deny your renewal or citizenship application down the road - how will that impact your situation? If you decide not to heed that 7 day/1st year, will you regret your decision if it causes you problems?
For the record - my legal firm stated that the law requires 7 days in the 1st year and 14 days every 2 year period thereafter. They acknowledged there has been leniency due to the validity period of the card and the legal requirements being poorly aligned. (They were also convinced there was no way the government could or would remove the counting from application date for those who had already submitted a visa application) For me, seeing how the government has been willing to effectively retroactively change laws, hearing about how they are working overtime to reject citizenship applications, and watching this landscape change significantly in such a short amount of time - I’m opting for the most solid legal standing I can get. Ultimately, you need to make the best choice for you and your situation.