Earlier quoted context omitted.
The boon wasn't that consumers could customize their computers - it was that competitors could easy compete on individual parts because of the standardization.
A valid point! The economics of integration seems to be driving us towards single boxes which suit stifled competition? Is there an opening here for a non-manufacturing "open" standards body to emerge? They could publish mechanical specifications for a "click together phone" and a specification for a simple electrical bus/interconnect (use USB for everything?) One could envisage a series of standard exterior cases, b…
Even when Google was still working on Ara, they planned to release the "Endo", or base frame, itself, and then just let vendors sell modules with a similar OEM partnership to how they control Android OEMs today.