Why do you consider them "dubious" in your opinion?
I think Roddenberry wanted to "correct" some of the things he wasn't happy about with the original series. He should know though that good storytelling always involves some kind of conflict, otherwise there's no drama and everything becomes very bland.
But even after the first 2 seasons, no-one still really strongly disagreed with each other that much.
I remember before TNG first debuted, I was a little sceptical of the show, wondering how it would work and compare to the original. I'm sure many people felt the same way. In fact, when it did begin airing, I tuned out after a few episodes of the first season because I didn't really enjoy the show that much. I only caught it again when it was at the end of the 3rd season and Picard became Locutus. I watched it avidly from then on, and only later went back and sat through the first 3 seasons.
In the UK though, it was more than a year from when the 3rd season ended on a cliffhanger to when the premiere of the 4th season was screened. Instead, they decided to show the original series again in its entirety. That was 79 weeks in between (about 18 months), but probably slightly more to account for any breaks the BBC might've decided to take in between for other events (eg Christmas etc). This is what TV used to be like in the UK and how long you'd have to wait between seasons.