You only say it's a bad metric because it doesn't help your "case" against the idea that a lot of people enjoyed the last two seasons. Yes, re The Room, it does.
You mean the GoT of franchise that has two other shows being created right now?
Show me a metric that says people liked it more before the last two seasons and we can talk, otherwise you are just proving me more right. Show us "what you've seen all over the internet" and we can talk.
Why do you keep using the phrase objectively good? You're using that word wrong. I used the word "objective" for evidence, i.e. metrics, to demonstrate that the show was good and well liked, because of the increased number of people who watched it throughout season 7, and then the even more increased people who watched in Season 8.
We're not talking objectively good, we're talking good, as in people continued to enjoy it. Moreover, we're talking about a series, not a movie, and the metrics show viewership
rose throughout both of the last two seasons, meaning as it went on, it became more popular - demonstrably proving you wrong.
Now, if you can point to metrics showing that people watched it even though they hated it, and kept doing so, we can talk.