[minsc__and__boo]

>the adapters are large enough that there are only 4 but also small enough that making a 2x USB A adapter would be quite challenging.

This was my thought as well, but they're planning on doing more interfaces than what they're listing now, so it may be they went for universibility with the size.

Also USB-A is going to slowly die off anyways, so I doubt it's good to build the dongle standard to two USB-As.