how incredible it was that [Hitler] was able to accumulate so much power and would talk about all the great things he and the Nazi Party achieved for the German people

Where's the lie though?

expressed his “admiration” for the Nazis and Hitler for their use of propaganda

Papers have been written on Nazi propaganda and the techniques have made their way into the standard leftist playbook. Every progressive political activist is an adherent of the Nazi propaganda style whether they know it or not, although Goebbels put a strong emphasis on spinning the truth and disdained outright lying.