"As long as everything that originated with Star Trek is not allowed to be used by the later series..."
Using elements from already existing fictional universes to build new, separate fictional universes is standard practice - if one has the legal rights, that is (sometimes, even when not).
This says nothing about the identity or the distinctiveness of the universes, BillJ.
But there is something to respecting what came before. If you can't respect something created by someone else, why use it at all? Why not create something new? Was Modern Trek that creatively bankrupt?
How long do you think Modern Trek would've stayed afloat if it hadn't been a spin-off to Star Trek?