Probably a good question for the manufacturer. I suppose it's a good question to ask why dedicated computers are even being produced at all, being that 90%+ of chess players probably use programs on their phones or laptops, and even if they want a physical board, most likely prefer to use e-Boards so they can play against others on Chess.com or Lichess, or play against a wide variety of AI engines. I suppose the manufacturer feels there is still a small niche for these products, but likely decided to save costs by not including a lot of the frills we're accustomed to seeing in these things. I have a theory that all the new chess computers we're seeing from China is a result of the renewed national interest in chess there, since we're seeing so many strong players from there. They're sort of the new "Russia" of chess.