Wouldn’t be all surprised if at least some of those ports will make it back whenever they release the redesigned 13 inch MacBook Pro and MacBook Air. Probably time constraints that made them release them with the old design. Just my guess.
I just want a pastel orange MBA though.
According to everymac.com, the 12" PowerBook G4 (2004) had an amazing 10.9"x8.6" footprint (and the 12" MacBook (2017) was 11.04"x7.74" - and 2.03 pounds.)
To get the low price point in a year or two they can just have the low end 14” be the starting Pro machine. Only advantage to the 13 now is the touch bar, if you like that.