People also seem to forget that new Hetalia merch is released all the time + we just got the musicals, and we would NEVER get them if the publishers thought there weren’t enough people who want to buy/go to see them. Some of the merch is also expensive (like the dolls dor example), and I’m sure only fans of the series buy them (if they have money). So they wouldn’t release them if Hetalia was “dead”.