Indeed they did, and much faster than they have with the 520 and H Plus. There has been a critical failure with the 520 in lack of a POI feature. That is absolutely essential in a commercial drone where inspections and surveys are part of the sales pitch. It’s also a critical feature for a general photography drone, especially when all the competition has it. The inability to fly a continuous, smooth curved flight plan without stopping and re-aiming the camera has been another failure. Again something all the competition can do with their basic model programming. The foundation of those failures was poor decision making with flight controllers. They went with PX4 hoping code would be developed to do what is badly needed instead of using Pixhawk which can do all of that and much, much more. Yuneec no longer has a customer base willing to take the long view with hopes for better performance. Their customers will, and many already have, abandon them for products that will serve their needs today.
I do believe it’s a mistake to buy something with hopes it will be improved later. Know what you need and buy the product that will fulfill those needs today. It’s also a mistake to market a deficient product with hope you might be able to improve it later, especially if there’s no solid projection for improvement completion. You can’t continually pi$$ off your customers and expect them to continue buying your products. Other companies see the failures and create products they know will take your customers away from you, which is precisely what Autel and Parrot has done, and for a much lower price.