Same common reason "not satisfied you will leave Canada based on home relation and purpose of travel" ....Hi, did you get any reason for rejection? I think they have rejected because of the CEC EE application as dependent. I heard from people that they don't entertain visitor visa while they are in any other immigration application.
In either case, there is no harm in letting them know via webform.
Yes , you are right. No harm in informing them. Thank you