Yeah, that bugged me about this episode too. As someone who is also really camera shy, I didn't like that Dot was basically forced to "get over" being camera shy whenever she's not in Gurumin mode. For all we know she might have valid reasons for not wanting to appear on camera except as Gurumin. Maybe she was cyberbullied, has performance anxiety, or is terrified of people seeing her real self and possibly using video footage of her as a weapon against her. Forcing people into situations they can't handle doesn't make them get over it, it only enhances their fears.