Have you ever owned a GameBoy or GBA? They pretty much require that sort of method as well.
Played Klonoa - Empire of Dreams on my bf's older model DS.
That one has the Y attack / B jump arrangement from the get-go,
but it at least allows another control scheme.
And when I've got the choice to re-arrange button configs for
the Classic Controller to my liking with Joy2Key, I don't -need-
to do any weird side-ways side of the thumb button hitting.
All the Zero saga games let you change things around
to your liking, and I always have Y as my attack, B as jump
L as my weapon switcher and R as my dash... with the CC
I have my X button set as a turbo fire and A as a normal jump,
so if I wanna run around auto shooting while still having the
ability to jump, I can....
I don't feel inclined to pay for a system, portable or home,
then pay for games and NOT have a choice of control scheme.
It's not a matter of "whining" or being a pussy, but what's
practical for the way the buttons themselves are laid out.
Hell if anything, their omission of remapping just lends
more reason for anyone to hack their PSP or Vita and
play the games on that with an emulator that they -can-
remap and reconfigure the control scheme on...