no worries, I did the same thing as you and got the same email about unsolicited documents.
then, 2 weeks after, when I got my AOR, I resubmitted the same webform and then I got this:
Thank you for contacting Immigration, Refugees and Citizenship Canada (IRCC).
Please note that this is a response to the enquiries received below.
We verified the information on file and are pleased to confirm that the updated forms were received by the responsible office.
If further information is needed during the processing of your application, the responsible office may contact you.
We hope the information provided is helpful in assisting you with your enquiry.