It’s about strategy: you don’t know what the interviewers are looking for. Being human they may be dazzled by side projects and it may help get the job at compa

It’s about strategy: you don’t know what the interviewers are looking for. Being human they may be dazzled by side projects and it may help get the job at company A because person 13 was interviewing that day but make no difference at B and C. But you get more offers and negotiate a better compensation at B. In other words interviews are human and messy, not strictly logical.