The Bully is a very exciting speaker, I personally like it more than the Brute, tbh.
We've just about got everything ready to go for it.
What's sad in a way is that the tweeter's on-axis response is hampered by the foam layer surrounding the tweeter causing the wavy response of the tweeter. (The grill makes it worse along with the hump at 600Hz)
Had they used a little more layered felt and not cut it perfectly round, the on-axis response could have likely been much smoother especially on axis. As it is, there's a regular pattern of peaks/dips, with the peaks in the on-axis becoming dips off axis & vice versa. The cabinet also needed a little more stuffing to control the resonance near the tuning frequency of the port.
I'd imagine that wilson put a lot of time/effort into picking good, quality drivers, cabinetry, paint etc, but it's interesting to see how little things here and there were seemingly overlooked leading to the measurements we get..
As far as what they did do with the crossover on the woofer? If I were to guess, they designed the crossovers using electrical parameters only, rather than the actual acoustic output of the drivers in that box. It certainly wouldn't be the first time baffle-step got missed in the design phase of a speaker..