Hi, just wanting to share my experience and maybe provide a bit of clarity with this concern.
I was finally able to speak to an IRCC call center agent yesterday and was informed that my eligibility has passed. And just like you, I asked if it was passed by an analyst or an officer. The lovely and very helpful agent said he does not really know as it is not indicated in the file. He went to check further and then informed me that eligibility actually has 2 stages, in my case, he said that my eligibility was recommended passed on the 30th of Oct and conclusively passed on the 21st of Dec. So I guess, it is safe to assume that recommended passed is by the analyst and conclusively passed is done by the officer?
I could be wrong with this assumption (as I just based this on my experience), so anyone who knows or experienced otherwise, feel free to correct me
Anyway, hope this helps...