A great example is the case of "Taiji" from (3286)/X JAPAN/ , he left the band, but the members consider him as a current member. I think there needs to be more rules or explanations about deceased artists.
It is understandable that he is a "relative blood member" since the band mentions him as such, but they do not mention him as a current member, now, to consider him a member and not a former member: \