Yes, I also have griped about SF that shoehorns the distant future into the mold of today, or of the past. I have special disdain for those who want to recreate the wild west, or the age of piracy, or empires of the past with space opera trappings. If you love the old west, write westerns, man! The obsession with FTL travel (which seems unlikely to ever really become possible) also ties in with this.
To my way of thinking, conventional literature at its best explores the human condition. SF at its best explores how the human(-ish) condition could be different. SF that doesn't make it different seems like wasted potential, a missed opportunity.
I learned a long time ago that SF stories and SF writers have limitations that they must work within. SF is about ideas, and there are limits to how many new and unfamiliar ideas you can cram into a story without either losing your readers or getting lost yourself. Your readers are embedded in the culture of today. Even if you as a writer can mentally break out of the culture of today, bringing your readers along for that ride is extremely difficult.
You might want to write a story exploring the potential of AI and robotics. Or nuclear fusion power. Or asteroid mining. Or molecular manufacturing. Or life extension. All good topics. Now try to write a novel where *all* of those scenarios have become real and are interacting with one another. Oops... That's going to be really hard to pull off without ending up in a muddled mess, and it's also going to be hard to explore each of those ideas in the depth it deserves. (Especially if you also have, you know... characters, and a plot, and so forth!)