When funds are limited, you have to justify the cost of something with its reward. This isn't an issue of "Not enough people are taking these courses, so let's cull them." It's an issue of "We're spending a lot of money on very few students. We can probably use that money to help more students."

I'm a CS PhD student. I think it's terrible that they have to cut some CS AP classes. But I also understand that they have a limited budget, and a mandate to help as many students as possible with that budget. It's easy to criticize them for cutting classes we think are valuable, but we aren't faced with the problem of trying to use a finite budget to cover classes in the sciences, math, history, literature, languages and the arts.