In terms of design aesthetics, things come and go, are on the scene very briefly or linger longer, go back and forth, get revived at a later date, etc, etc.
Here is a little something from one of my other interests. (This is not mine, just shown to illustrate a point.) :
A 1960s Ford, right?
Nope. That's a 1983 Ford Landau from Brazil.
In Brazil, the 1966 Ford Galaxie from the U.S. was retained in basic form, with quite minor styling changes, right through the 1983 model year.
I'm really not having a problem fitting the Discoprise or TMP Enterprise into the lineage. I am okay with what they have done.