If you got an AIP which is "approved in Principle" you can get health card. Take that document with your passport and a proof of residence ( any form of id which shows your address in Canada, typically driving license) to Service Ontario.
If you have received AIP or Work permit by now, he's eligible for OHIP. He can take this documents plus his passport and driving license/any govt issue ID which shows proof of his residence. They will give him health card.
I did so last week.
I have not received any such mail. What did it say exactly? Plus I have been using that online tool and it has been saying 2019 since a while although a lot of people from Jan, Feb 2020 have received Copr so I am not sure how that system works.
I am in the same boat. I applied for extension in September but my process for PR has started so I don't think there would be anything on extension. So you and your husband will be fine. *fingers crossed*
When you applied for extension of visitor visa, did you get confirmation? That it has been submitted and is in process? If you did, then he is on implied status. You shouldn't worry then. Hopefully you will hear soon on PR.