I don’t get the negan/glen comparisons. The main backlash from negan/glen was because they handled Glenn dying the worst way possible. You know negan is beating someone to death, you hear screams from the rest of the gang reacting and see the blood running down someone’s face, but you don’t know who is being killed and the season ends. Then you don’t find out who is killed til the next season.
Here is a reminder of how the season ended and why they got the backlash
The only way the Joel Abby scene would be comparable is if they ended the season with Abby in a room with Joel Ellie Dina Tommy and we hear her beating someone to death and we don’t find out who til season 3.
Abby killed Joel, ain’t no redemption for her to the viewers who watched for Joel. All the shyt AMC did above played a major role in ppl turning on the show, that is on top of them pumpfaking Glenn getting killed earlier in the season with the dumpster scene.
I usually watched TWD on my pirate site the Monday after, but decided to watch this episode on Stream2watch live. I was expecting an all time, iconic TV moment with them showing Negan giving somebody in Rick's group that work in that SAME episode

Prior to this scene this episode was incredible as Negan's goons were showing up to random areas mean mugging Rick and it was slowly dawning on Rick that he

starting shyt with Negan's group. Mind you the fakkit comic book readers were talking about Negan in TWD season threads years before he actually showed up in the show. They was hyping the hell out of Negan

The actual scene you posted where Negan shows up for the first time was dope.... until he starts bashing someone's head in and the episode ends on a cliffhanger!
IMO that was a all time fumble by AMC

AMC/TWD could have had an legendary TV moment if they showed Glenn and Abraham getting that work from Lucille in the very same episode Negan showed up in
I'll never forget the night this episode aired, it came on the same time as Wrestlemania that night.