True, but you got to start somewhere. The Wright Bros' airplane only flew 120 ft. on its maiden voyage after all. 
The possibilities that having an actual, real life warp field (a fact that only a few years ago was deemed impossible to achieve without generating more energy output than our Sun) present are limitless. We're not going to jumping on an interstellar flight to Alpha Centari right now, but we do have a real world proof of concept that proves FTL is possible within our conceivable lifetimes.
I agree. The problem with FTL travel is that the closer something gets to the speed of light, the less mass it has to have to move that fast. The only thing in the universe that can travel at the speed of light is energy and dark energy, both of which have no mass more than that of a particle. So any ship that would go at the speed of light would be one that is reduced to pure energy, which means destroying everything and everyone inside. And that's only going at the speed of light, let alone faster than it.
Now there are theoretical ways to go at or even faster than the speed of light, and that's what science fiction tends to use. Things like wormholes, quantum entanglement, space bubbles, being quantized, etc but we are far, far away from that if they are actually possible to do at all.