I would agree that its fine to not include it, had they not switched to usb-c right when they stopped including bricks so all my new devices came with usb-c chargers but I only have usb-a bricks
To be fair, they did include a USB-C charger with the iPhone 11 for one year. But yeah, people on a two-year upgrade (or longer) cadence will likely not have had an Apple USB-C power adapter included with any of their devices.