I'm pretty sure that warp speed limit crap was purposely forgotten later in the series, as it was a serious handicap to telling a good story in the long run. It never came up on DS9, Voyager, or the TNG films.

It's a bit of a stretch comparing Lucas to Berman. And "creative consultant" didn't mean Gene Roddenberry had any real control over the later Trek films.

We won't really know the level of George's involvement until the sequel starts shooting.

To believe Lucas had nothing to do with the creation of Star Wars is a whole new level of loathing and denial.