I know she has more than that, it was more of a tongue and cheek thing.It's pretty cool I agree, what's kind of sad is that you look at her actual content without the words "sombra" and you see a huge discrepancy in views. She's barely getting ~5k views on her normal content and 20k+ views on anything overwatch related. I think she found that doing these meetups does more for her channel than making original content.
edit: misread it, yea it's kinda sad alot of youtubers fall in line having to keep doing one topic as well, which usually down the line means they cut down some projects but that's a different monster altogether