Steve Jobs didn't say others were stealing "Apple's revolutionary design", he said they all rip off Rod Holt's design.
All the machines he mentions were either not consumer products neither compact, or still had lots of fans for cooling (HP 21MX, TI 960B, HP 9825, etc), so I assume there is some measure of truth in that the one designed by Rod Holt was something new.
I wondered why you were ignoring the switching power supplies in consumer televisions in 1976, but then I discovered that I'd posted an older version of my article without that section. Oops. It's there now.
All the machines he mentions were either not consumer products neither compact, or still had lots of fans for cooling (HP 21MX, TI 960B, HP 9825, etc), so I assume there is some measure of truth in that the one designed by Rod Holt was something new.