Of course Apple cares about profits just like every company, they needed to play catch up to Netflix and they were never going to do that by quantity so they chose to go for quality instead.

In 10 years time Netflix may have a 1000 different shows but if 800 of them are cancelled and finished without a resolution they really only have 200 shows because no one starts a show if you know it dosn't have a conclusion.

Were as in 10 years time Apple may have only have made 300 shows total but if 250 of them are finished with endings they will have a better catalogue of quality content.