I can confirm that barely anyone has asked for this over the years we've been doing SkyDemon. I don't mean to belittle the feature - I'm sure it's both useful and critical to certain modes of flying - but we do not try to do everything, and we do not state that our W&B feature is suitable for every aircraft. Clearly, it isn't. SkyDemon supporting variable CoG is something you feel a) isn't very hard, b) wouldn't complicate the product and c) is absolutely essential for certain pilots. I politely disagree. We provide a product for the mass European market, and in general we go where the demand takes us.