Bug hunting in this smol game only needs one dude, he doesn't even need to be knowledgeable in coding, intern or something, volunteer, or third party QA dude, trying to replicate bug.
I think they are 100% on new project. Besides, updating and ironing bugs has positive marketing effect too.
ORRRR they are proud of their work, in such cases, it's more of a hobby when you are enthusiastic about it.
Ahhh like my younger days when I worked on OBD software and hardware. Only to be crushed by big corpo.