Sony’s new PS5 update includes Dolby Atmos and the ability to mute the startup beep | You can now silence the PS5 beep sound and use a second controller to assist friends or family in games.::Sony is releasing a big new PS5 update. It includes Dolby Atmos support, the ability to mute the boot up beep, and you can use a second controller to help friends in games.
That’s probably the main reason.
Although to be clear Sony also came up with an accessible controller in case people do not know about it.