It seems like you have already started to see the compromises. VTOL designs are full of compromises.
I wouldn’t count on the Convergence to carry much weight in flight due to its small wing area. Even a 1.5 meter span FireFLY6 Pro is only rated for a payload capacity of 1.5lbs (0.7kg)…which is fine for mapping.
The 2 meter span Griffin can fly long but can only carry a 2.2lbs (1.0kg) payload. The VTO Pro has a bigger wingspan and can carry three times the payload. It is basically a Mugin airframe.
Anyway, to get back to the thread topic, it will be interesting to see the price on the VTBIRD 1.5 if it is meant for the hobby market. FinWingHobby has been around for years with their FPV Airplane Penguin design.