One of the reasons the Network hasn't taken off like they wanted it to isn't just because of the product, it's because of the simple reality that most fans are just casual fans who are never gonna bother spending any money on the product. They'll watch the show out of habit every week, but they won't put down any money to see it. And this has always been the case. Back in the Attitude Era, television ratings were at their highest in 1999 with over 6 million people watching every week, yet the largest PPV buyrate that year was Wrestlemania 15 (also the largest PPV buyrate in WWF history at that point) with only 800,000 buys. Eight-hundred thousand is a large number, but the differences between 800,000 paying to watch WWE on PPV and 6,000,000 watching it for free on TV are still astronomical. And I'm talking only domestically here.
The same still remains true today, where you have approximately four million households watching Raw every week in America, yet not even 1/4 of that can be bothered putting down ten measly dollars for the Network and all that it offers you. I'm sure they'd have a lot more subscriptions if the product was better, but the vast majority of people still wouldn't be bothered paying money for any WWE content, and of the ones that already have, about 150,000 have already unsubscribed! (Including myself.)
And that's surely created much of the ripple effect we see with all the struggles on the business side. Any advertiser knowing most wrestling fans won't spend 10 measly dollars for so much content surely wants to stay away from wrestling.