they also made the chip so it’s not much of a defence
It’s a pretty old chip though. They shipped it over a year ago and even that was mostly just an upgrade from LPDDR4 to LPDDR5. Which is a substantial upgrade, real world performance wise, but there would have been minimal engineering work by the chip design team who presumably were working on something else (desktop/laptop chips, probably, and those certainly do have USB-3).
It’s a pretty old chip though. They shipped it over a year ago and even that was mostly just an upgrade from LPDDR4 to LPDDR5. Which is a substantial upgrade, real world performance wise, but there would have been minimal engineering work by the chip design team who presumably were working on something else (desktop/laptop chips, probably, and those certainly do have USB-3).