I think the goal whether it be passive or active is to get max power into all speakers. In most cases that requires more power by means of more amps. If so, then why not try an active setup to see if that will offer more flexibility? Might be able to extract better sound by playing with xover points, slopes, level, phase, etc....You have to be willing and capable of "Putting in Work" to see a major difference.
Remember, all cars, trucks, and SUVs are different. That prepackaged crossover may work in some vehicles but not sound as good in others as the mounting locations and acoustics vary.