It's cool. Just pointing out that it's still in the competition phase now. Again, I admit to my bias for the V-280.
The V-280 is smaller than the V-22 and the V-22 has no problem with LZs for the Marines so I assume that won't be an isse. I don't know if they have a wing fold version (see below) of the V-280 right now since the primary customer is the Army so they don't need to be on boats as of now.
The Defiant is cool, with the contra-rotating rotors and pusher prop, but it can't achieve the speed of the V-280 (the 280 is there in the name for a reason). Helicopters always have that big issue with the reversed flow on the retreating blade and approaching shock waves on the advancing blades. The tilt rotors don't have this issue.
I assume the Defiant slows the rotation of blades at higher speeds to help with this issue though.
I doubt the Defiant is any more complicated than the V-280. Tomato Tomahto
BTW, it's hard to believe that the V-22 is "40 year old tech" now.