The order of keys on a piano also is sensible, you go left, the notes go down, you go right, the notes go up, all your brain needs to work on is 'how far', and 'how many'.
The keys on a computer keyboard have no such convenient ordering. In fact, the layout of the keyboard was intentionally made confusing to slow you down. The keyboard was invented before the computer, for mechanical typesetting machines, if you went too fast, the machine would jam up, so they keys were arranged so that letters that you normally type after each other in common words, are in totally different places on the keyboard, to force you to type slower.....
and now we are stuck with this stupid design.....