I think this isn't so much Jobs lying as it is him doing his normal embellishment.

Rod Holts design wasn't electrically unique, but it was extremely light and small. The Apple II wasn't the first computer to use a switching supply but it was shockingly light of a power supply which really helped the Apple II's reputation.

Which... as far as Jobs was likely concerned was all that mattered, but it wasn't the rip-off he claimed, it was just the start of the trend and Holt was at the right time to be one of the first on that wave.