Thank you for your response, more nuanced than mine.
I will try to give an example of difficulty: we will use VTOL tool when sufficient wind is announced at altitude by taking account of a high cut-in wind speed for a rigid plane or drone; but on the other hand this takeoff mode (and also the transition and the power mode that follow) is difficult in windy conditions, which the video can indirectly confirm.
I’m afraid that this rather favorable concept has nevertheless given its limits, and this under particularly favorable conditions (investments, skills, previous small prototypes…).