(I wonder now if part of why we could put up with the problems of the first two years of Next Generation is that its genial ineptness was such a relief compared to the spectrum of cheesy or awful like Voyagers! or Small Wonder that had to be enough for a science fiction fix before it.)
Maybe. Pre-TNG in the '80s, we also had things like
V, which started out strong in the original miniseries but got increasingly silly after that. As well as
ALF, Knight Rider, The Powers of Matthew Star (which I don't think I watched much),
Misfits of Science (another one I think I largely missed), and
Tales from the Darkside. Probably the most prestigious thing in SFTV in that period was
Amazing Stories from Spielberg, but that was a show driven by directors rather than writers, so the episodes tended to have great production values and style and execution, but the stories ranged from mediocre to mindbogglingly stupid.
So, yeah, early TNG wasn't really that bad compared to its competition at the time. I know I liked it just fine when it first aired. Although I was very much predisposed to see the best in it, and I think a lot of us were.
It's interesting to note, though, that 1989 not only brought a substantial improvement in TNG's quality, but also saw the advent of
Alien Nation and
Quantum Leap, both of which represented a much smarter and more sophisticated style of SF/fantasy storytelling. And maybe it was TNG that paved the way for those. Even with all its early flaws, it was at least trying to be intelligent and thought-provoking, to be more than just schlocky action.