Switching from torx screws to pentalobe on iPhones is completely inexcusable. More expensive, less available tooling, no torque advantage. [0]
[0]: https://www.ifixit.com/News/14279/apples-diabolical-plan-to-...
[0]: https://www.ifixit.com/News/14279/apples-diabolical-plan-to-...
What Apple does not care about is power users who want to crack open their devices and void the warranty. Those users can go out of their way to buy security screwdrivers. Apple has always done this, going at least as far back as the original Macintosh.