I dunno, but she lost about 120 subscriptions when she uploaded the last one, which is about the same amount of subscriptions she lost for each video she uploaded after stopping the Amberlynn videos. She also got some criticism for that video, which is the first time one of her videos got negative remarks directed at her (the criticism was fairly mild and limited, but it was still new for her) That probably got her down, since she seems like the type who wants to please everybody.
In one respect, becoming a SJW commentator on cringe videos was kind of logical; it enabled her to return to doing the kind of ranting that made her popular. However, I think she misjudged the nature of her audience; those who hatewatch mukbangs are seldom SJW-types. Rather than becoming emotional over the poor, seemingly-wronged kid in the wig, a lot of her audience probably felt more sympathy for the underpaid, overstressed teachers that she painted as villains, who were trying to just get through another day of work and had to deal with shit again. She also seemed to misread what was actually happening in the video by not hearing what the teachers were actually saying; proper context made the kid seem even less sympathetic.
In other words, she has kind of a tin ear, and some of the audience gently but firmly let her know it.
They signed up for Amberlynn commentary after all. Building an audience off her back and then pulling a bait-and-switch in which you drop Amberlynn commentary for your own brilliant content is generally frowned upon.
When all is said and done, she is a shut-in with some emotional issues who accidentally got a modest following that she never would have gotten on her own.