To say that teleportation cannot exist and is only a thing of one’s imagination is limiting our responsibility to fulfill Hashem’s Will.
Hashem’s will is expressed in the Torah. I don’t think included any of the Taryag mitzvos is to invent a teleporter.
The way Hashem created the world is that people with a financial incentive to invent new technologies will do so.
If someone (or some company) felt that it would be possible to invent one, and lucrative financially to do so, they would. The fact that nobody has (probably because nobody has the technology to do so) is in no way a violation of Hashem’s will.