As a staunch defender of the show for years, I waited until after this season was over to give my critique because I kept hoping they could redeem themselves. They didn't.
The deaths in episode 1 were fine, it followed the comics and showed just how dark and twisted Negan could be. Everything else about the episode was garbage. The way walkers can fall on a secondary character and/or fight them like they're a professional wrestler while major characters can just walk through a horde unscathed is just stupid. Rick in episode one was able to just basically walk through them at his own convenience. We saw this again later in the season when Rick & Michonne escaped through a horde after they mowed down hundreds of zombies on the highway with a wire (which admittedly was a cool scene.)
Our heroes being basically invincible against walkers is an easy problem to fix, either let some of them occasionally get bitten or else just don't put them in those situations as writers. When is the last time a main character was bitten? Has it been a full season? Meh.
The trash people. The stupidity of the trash people is beyond anything I thought this show could sink to. It feels as hokey as anything the Sy-Fy channel has ever put out. The stupid way they look, the stupid place they live, the stupid way they talk. It's almost like everyone in the trash cult got together the day after the outbreak and said "Hey, what if we ran our cult exactly the way every cheesy apocalyptic movie portrayed? Let'***** every stereotype every movie has ever shown."
The way they talk irritates me to no end. The stupid leader with the terrible hair can barely speak english, like somehow she's forgotten how speech works in the 2-3 years since the outbreak began. I can't stress enough how terrible and awkward and stupid this is. When they showed up, that was it for me, the show can never be the same.
The Kingdom. I've read every comic, so I knew they were coming. I knew King Ezekial was on his way and somehow the comics made it work. Maybe it's because in the comics, his dialect didn't come through? His vocabulary, while absurd, isn't what makes it so cheesy. It's like he's cos-playing. It would be like if you or I went to a Renaissance Faire on a whim and began talking as absurdly as we could just so we could get a few laughs out of each other. His vocabulary is a stretch but it's at least believable. The way he talks makes me want everyone in The Kingdom to die. You don't deserve to live if you're stupid enough to cosplay in the apocalypse.
Even Rick... Rick of the comics is basically Liam Neeson in Taken. Rick in the show is totally neutered. He only gets out of bad situations becasue of luck. Outside of ripping the guys throat out 4 seasons ago and beating to death the cannibals a few seasons back, he's not Rick. He can't outsmart anyone. He has to rely on luck or other people, and that's a shame. The hero of the show is no hero, he's just lucky. Cocky when you're Michael Jordan is one thing, lucky and cocky is another thing entirely. Rick isn't Rick.
I could go on, but I don't want this post to turn into a 4,000 word essay. Suffice it to say this show has completely fallen off a cliff. It had so much potential, and such a large audience. They've gone from a peak of 17 million per week in season 5 to averaging 11 million in season 7 (and most of that average came from everyone tuning in to see the deaths in episode one). After episode 1, an average of roughly 10 million people tuned in each week. Obviously I'm no TV writer, but it seems easy enough to retain that audience by doing 2 things. Don't jerk everyone around with cliffhangers every few episodes. There's no need, we're already committed to your show, a ratings grab on a show with this many viewers is just greedy. And 2, don't be cheesy. AMC has prided itself on it's gritty and real characters, yet in a show that should be the grittiest, the characters keep getting less real. You do those 2 things and I have a feeling the rest falls into place.
Anyway, I'm not done with the show. I've invested 7 seasons, so I want to see how it plays out, but it's not must see for me anymore, and I found myself fast-forwarding large parts of the second half of the season this Spring just so I could get to the point of the episode. 60 minutes to tell a 5 minute story is just flat out bad storytelling.
ETA: Negan is the only redeeming thing about season 7. If not for him, I'd bet the average viewership would have dropped another 20-30%. He's been fantastic.