USB-C is fine, its the number of ports that is the issue and not consumer friendly..
And I think USB-A isn't quite legacy just yet (it's OK they ditched the VGA and/or DVI ports), there are still a lot of need for one of those ports. Same with a card reader slot. I also think there is a need for a headphone jack even though bluetooth is qutie viable.
There was need for all of the “legacy” ports when the iMac was introduced. The idea of getting rid of ports and standardizing on one when it became technically possible didn’t start under Cook.
And I think USB-A isn't quite legacy just yet (it's OK they ditched the VGA and/or DVI ports), there are still a lot of need for one of those ports. Same with a card reader slot. I also think there is a need for a headphone jack even though bluetooth is qutie viable.