I might have been willing to offer my thoughts on this, but your closing sentence led me to conclude that you don't have a genuine interest in discussing the subject. I would invite you to reword or retract it.
He has all the right to say that. Star Trek The Motion Picture has the true feeling that Gene Rodenberry could only put sometimes in TOS. He had to deal with the producer's censorship, but he was really brave and managed to give some of his ideals and vision to the better episodes.
Finally, when he was given the Executive Producer rank in Star Trek: The Motion Picture and after 10 years, he could bring all his futurist and optimistic vision. The Motion Picture is like the fulfillment of the ideas that were already present in the original series, but in a discrete way, mostly overshadowed by the action and creatures. One exception has to be The City on the Edge of Forever that was the masterpiece in the original series and it was a total trek episode, that contained the elements that would be present after, specially in The Motion Picture and TNG.
Besides that, The Motion Picture as he said, is the most cinematic movie in the saga. Instead of being a more action movie, it's a movie about the human spirit, about overcoming the challenges to advance and to learn more about ourselves and the universe. It's about thinking that all this crap that we have today with people killing each other, people in enormous mansions with millions of dollars while millions of people are without any water or food, will end someday so the humans have become an optimistic and united race that explores the universe.
The movie has the most beautiful music I've ever heard, from the Overture to the End Credits. The first 20-30 minutes are probably the best in all Star Trek. The editing, VFX, music, acting... is really impressive. Since when I was a child, I always loved how the epic optimisic music from the main titties finish and suddenly we see that mysterious cloud and the Klingon Ships with the new Klingon Theme. The following scenes with the Spock refusal to begin the total logic path, paving the way for his return to Starfleet. I remember the Vulcan Master telling Spock:
"I sense the consciousness calling to you from space. ...Your human blood is touched by it, Spock. You have not yet attained Kolinahr. He must search elsewhere for his answer. He shall not find it here. Live long and prosper, Spock.
And just after that we see the Federation Starfleet Command. That's truly amazing editing work, because what is calling for Spock is his desire to come back to Starfleet and with this friends on the Enterprise.
The Enterprise scene is my favourite scene in all Star Trek. The effect that it produce to me when I saw it for the first time is indescribable, it's epic, romantic, powerful, and really nostalgic in some way. You realize how people was thinking maybe star trek would never come back and then they see the enterprise again in all it's majesty. I've heard about the reactions in the theaters when that scene came in, and I wish I could go back to 1979 to be present in that moment.
From that vibrant 20-30 minutes, the movie moves more slowly, but it keeps the interest to the end, as there are some subplots going on besides the investigation of the cloud, like
Spock's relationship with V'ger, Ilia and Decker, Kirk taking back command... All together with the impressive visuals of the cloud and the Enterprise journey to the core. I really like that scene when Spock goes to the cloud inside without permission.
The ending is totally optimistic, when the movie ends it appears like the human progress and future is unstoppable, and that star trek is unstoppable. The crew is reunited again and the Enterprise is ready for the human adventure.