I don't find the
Evo II deficient for it's weight class and niche. But as a pro stills shooter for 4 decades there are several things that could be improved upon or refined, yet.
One is the extraction of the MicroSD is slightly fussy because the damn things are so tiny, and because the hinge for the door is a delicate polyurethane strap that I miraculously haven't broken yet (I've had a secondary strip of gaffer's tape over the door that helps with securing it and opening it, since day one). I like that every Nikon Pro DSLR I've ever had is really robust re the card slot and extraction. Interchangeable cards with either the larger SD form-factor or CFExpress would be preferable. Simply for the better ergonomics of not having to pick the drone up off the landing pad, finding a soft spot that won't scratch the upper OA sensors while on it's back to get the MicroSD out, and not dropping the thing in some environment where I'd never find it, adds more drama than needed for lack of professional implementation.
Another annoying thing is ruining shots due to sun flare, partly due to no provision for a lens shade or baffle. I've jerry-rigged foam and tape ones, but forward flight or even hovering facing into a stiff breeze can knock the gimbal asunder or cause it to flop down with such a hood attached. Flare is a common enough problem with ultra wide angle lenses, but the FOV is not so extreme here. Alternately, nano-particle multicoated glass lens elements that don't flare so readily might help.