>>49674033they don't care
they're using her avatar as a means of making money. The person behind it doesn't even matter.
Matter of fact is Aqua hit the jackpot with her model. It's extremely marketable and helps that people are always mentioning and promoting her. She literally just has to stay wtihin the company so that Cover can continue to milk her model for all its worth.
The same can be said with Gura. No one cares about her or watches her stream in japan but everyone thinks she's cute and buys her plushies or cosplays as her. It's all about the initial reception/character that is portrayed so all they know about gura is "a"