Not at all.
Lenin simply said the truth-the people would never, never adopt socialism of their own free will, and that furthermore, once socialism was put in place by revolution, the people would work ceaselessly to undermine it.
Therefore, Lenin reasoned (correctly, see "What is to Be Done?") that Red terror before, during, and after the revolution would be required to whip the people along, to get them to act against their will, against their culture, against their religion, and against human nature.
Comunists are socialists who mean it.
I wholeheartedly agree, My use of the term "practical" Communism was just a very abridged (and inexact) form of what you said.
My favorite defintion is:
A Communist is a Socialist with *your* gun.