Apple was a very different company back then. If they had followed the philosophy they have today, Apple would have been the last company to to introduce a mouse. The idea is that if a new feature becoms industry standard, they won’t apply it until like 5 years later, but make it somehow better than anyone else.
In this context, it would have probably meant not including a keyboard or display at this point. They could have skipped the black+green stage and go straight for color displays while increasing the resolution, size and refresh rate or something.