Agree totally, when I applied for PR earlier, eCAS never show status updated after I got my PR, even when I landed the status is still In Process only. eCAS should not be relied upon as a reliable source of application status.
Yes you're absolutely correct. Just because we do not have App recvd doesn't mean they haven't touched our package that's with them now or its incomplete.
Ircc is known to update a lot of sponsors status in a single day all together. Means almost a lot of us will receive app recvd same day when they update it.