The control reflects how the equivalent of checkboxes look on mobile devices in native apps.

So this is a great way to get to use the same control as the rest of the OS uses without having to implement it yourself in CSS and JS. This means that as the OS changes, this control will adapt, including accessibility affordances like showing a 0 or 1 on the control to denote state.

I see why you don’t like the control, but this is what mobile OSes use (mainly because a checkbox the size required for a finger to hit comfortably would look ridiculous) and what users are now used to and what many websites in their mobile modes are emulating and not getting quite right.

Being able to have access to the native control is a huge benefit I think.