I think that was the point of the previous reply. You actually do need to think about the BCBA pass rates before choosing a program. Pass rates can be an important indicator of the quality of the program. You don't want to get your masters in ABA and then not be able to pass the BCBA exam due to a poor-quality program. You would be stuck professionally, in that case.
Additionally, I don't believe that a PhD in ABA is all that worthwhile. You can practice at the master's level just fine when you have your BCBA. If you want to do more than clinical practice, it would make more sense to go for a PhD in clinical or school psych, depending on your interests. With the latter degrees, you would also be eligible to be licensed as a psychologist and have many more options for employment. There are several quality PhD clinical or school programs with an emphasis in developmental disabilities, autism, behavioral analysis, etc.