I dont think StarTrek was ever an exception. It bent science to the service of plot all the time. Otherwise there would be no Spock.
^^It's a matter of degree. Even the hardest hard-SF authors will engage in poetic license if it serves the story. There's a vast difference between informed poetic license and simple ignorance. Gene Roddenberry made a virtually unprecedented effort to make
Star Trek as plausible as he could. He consulted with scientists, engineers, and research institutes, solicited their advice on everything. Obviously he took poetic license because he
had to, because the show was on a shoestring budget and couldn't avoid contrivances like humanoid aliens and Earth-duplicate cultures. But that's not being stupid or lazy. It's intelligently serving the needs of the story, having the good sense to know that a work of entertainment is not a science dissertation.
Yes, Trek under Roddenberry had a lot of fanciful elements, but at least he made an effort to keep one foot grounded in reality. And that's an entirely valid approach. As in any discipline, sometimes you don't learn the rules in order to follow them slavishly, but to be able to make responsible decisions about when and how to break them. It's very different from the approach of producers who don't even bother to do the research but just make stuff up at random.
(Just for one example, in "Yesterday's Enterprise," produced while Roddenberry was still in charge, the time vortex was explained in terms of "a Kerr loop of superstring material" -- which is based in real physics terminology, although the application of those terms is a bit erroneous. But in later, post-Roddenberry Trek, temporal phenomena were explained with increasing degrees of made-up gibberish like chronitons and, Prophets help us, "anti-time.")