Okay so I see why people don't like this. But I will try to explain this best I can because from the translation it seems weird
All For One imprinted himself into Shigaraki during quirk transformation because just like OFA - AFO carries the users within itself. AFO to Shigaraki is what All Might, Nana and others are to Deku. I believe if the tables were turned Deku could very well be taken over by former OFA users. It just makes sense
Now, onto AFO gaining control of Shigaraki. There is a glaring problem with this - If AFO took over Shigaraki's body - then who the hell is in AFO's body back in Tartarus? I reaaaaaaaaaaaally doubt AFO can exists at two places at once and have same quirk in 2 bodies. That would be insanely broken. So instead I believe that plot point will have to resolved. I have some theories like Shigaraki being in the body of AFO while AFO is in body of Shigaraki, or that Shigaraki is swallowed inside AFO. Either way i don't believe AFO can exist in 2 places at once. And i doubt AFO has full control of Shigaraki at this moment, maybe he will try to wrestle control. Either way its a plot point that will need A LOT of developing. And everything comes back to Tartarus
And finally Shigaraki asking for help. This HEAVILY reminds me of Darth Vader and Palpatine. If you remember, Darth Vader killed THOUSANDS of people, much more than Shigaraki and yet in the end he wrestled control of Palpatine and striked back. By no means that nullifies what Shigaraki has done, but at the end of the day he is just a kid swallowed, manipulated and terrorized by an evil master.
All in all i like the chapter. I know a lot of people will have a problem with this scenario but if you look at it more deeply it makes so much sense and opens up so much good stuff