The crossover has a MUCH greater affect on the sound of a speaker than the shape! Company’s tout time-alignment by placing the tweeter physically behind the bass/mid when in reality this alignment occurs as a delay in the crossover. Dispersion occurs in the crossover and defraction isn’t near the issue you would think it is. The cabinet shape just refines what happens with the crossover design. The curves look pretty which is why we are so drawn to them. From a cabinet building perspective, curves are HARD and straight lines are easy.
