For Wall Street it is not about quality, it is about how much you can get out of the masses.
I cancelled it in February and I take every wallstreet analysis with a rock of salt.
It's not even that - it's about their perception about how much the company is going to pay off, whether their perception is actually grounded in fact or not is another story.
And that's why the ad model is so attractive to Netflix and other streamers. With subscriptions any wall street analyst can take the subscriber numbers, multiply them by the cost of a subscription, and see exactly how much revenue the company is expected to bring in.
But with ad revenue only the company itself knows how much the companies buying ads are paying and how much they're paying per impression (or whatever metric they use). And that means it's harder for wall street types to easily predict the target numbers before the company wants to announce them. Puts more power into the hands of the company when it comes to controlling the narrative around their stock price.
(Also you can make a lot more money on ads than you can on subscriptions if you have a large enough base of eyeballs to show them to. Companies that buy advertising generally just throw money at media companies that have a large number of viewers/subscribers/etc.)