Without knowing the specifics of the model you cite, I have a few comments in general about tears during VR cam streams.
It's very easy for viewers to misunderstand what they are seeing when a model cries.
According to verbal comments previously made by one model, concerning one of the big Eastern European VR cam houses, the models must commit to several weeks of streaming on whatever shifts they are assigned. I would naturally assume they are fined (deducted from their income) for appearing late for their shift, for missing a scheduled shift, or for leaving a shift early.
This can be particularly rough on newer models who may be required to show up and stream at a time when they are normally asleep, particularly when nothing is happening except for a few silent viewers, with an occasional trolling chat comment and no tips.
A few months back a sad model was asked if everything was okay, and she sarcastically replied, "I just love having to come in to work and not make any money." Another crying model stated, "I need a lot of money and there are no jobs available."
Certainly some of the models seem to be inadequately trained, simply waiting passively for a viewer to comment or tip.
Like a stripper in a club, they go to work each day not knowing how much they will earn. If it's a dead shift, they might not earn anything. It would be very stressful to face such monetary uncertainty.
Because we are viewing for entertainment and fun, it's easy to assume models are camming for fun, but the truth is it's just a job for them. Like all of us, there are times when we hate our job and wish we didn't have to come to work. But we show up for work anyway, because we are responsible adults.
It is particularly tough for newer models who haven't yet built a base of loyal fans/tippers. So if a newer model drops her happy-sexy facade while sitting alone and bored in a cam room for hours, I don't assume her sadness means she is trafficked. It could easily mean the job is not working out as she had hoped, or her sadness is due to her personal problems, or she suffers from depression or is bipolar. She doesn't cut the cam session short, because she would get fined if she did. One seemingly-bipolar VR cam girl stated while crying, "Honestly, I don't want you all to see me in this state, but...[shrugs] what can I do." That same model would sometimes cry tears of joy when happy; her emotions were simply close to the surface.
There are some American cam sites (non-VR) which will cut off the stream of any model crying on cam, to avoid the appearance of sex trafficking. I prefer when the models are able to freely express their honest happy or sad emotions. But of course each cam house should have mechanisms in place to avoid their facilities being used for sex trafficking.