Like Haachama, she's damaged goods now. 
Other holos were already avoiding her before her menhera hiatus, probably because Marine and her were acting like retards around eachother in the studio, etc.
Also, don't forget how Japanese social and corporate culture look at flaking out due to mental illness, that shit is generally a death sentence if it means that the performance of the team/department/company has suffered because of your absence/spergouts. Regloss has, rightfully so, moved on at this point. 
Another thing is the battle for numbers now. A lot of holos who actively stream and participate in Cover's events and campaigns are struggling to get decent viewership numbers at the moment. Those are ACTIVE holos. I can't see how the leech expects to make a comeback (to her old viewer/subcounts? kek) if she has to "balance" her worklife. 
On top of that, vtubing as an industry ain't doing that hot right now, we got holos fighting to stay relevant and the internal competition (with holos overlapping eachother at every turn) is brutal. If Cover brings out a new JP gen, things are gonna get wild: We'll probably see another wave of graduation/terminations and I honestly think ol' blue is first on the chopping block.
Time will tell whatever the fuck Cover was thinking by not terminating her on the spot and instead letting her go on a booze- and benzo-filled journey to "find herself". Fuckers probably keep her on the payroll to appease Marine, her going menhera after her sololive must've scared the shit outta them kek