I don't know that making a new season of a tv show is anything like building on top of the Great Pyramids of Giza. It's like building another pyramid.
I certainly don't think that the Luxor hotel and casino in Las Vegas diminishes the legacy of the Great Pyramids in any way. In fact, I think it's really interesting that they were able to use an ancient form to achieve something architecturally unique from a modern standpoint. It allowed them to create an uncommonly large open lobby area, which is really cool to see, and wouldn't have happened if someone had said 'no pyramids, pyramids have been done.'
A remake/reboot is certainly nothing like replacing the Mona Lisa. It's more like a Banksy type person painting their own take on the Mona Lisa on a concrete wall or something.
Do you think that no artist after da Vinci should ever reference the Mona Lisa in any way? Because derivative works were being made by prominent artists before da Vinci even considered his finished. In fact, the famous Mona Lisa arguably wasn't even the only version of the Mona Lisa that da Vinci himself contributed to.
'Meaning' is extremely personal and dependent entirely on the context within which a work is received. No work will ever hold the exact same meaning for two individuals. Furthermore, a work's meaning to a particular individual is likely to evolve continuously throughout their life.
To discourage derivative works is like saying that you don't want to have to consider that alternate meanings are even possible.