I think this is just another consequence of Millennials becoming the dominant cultural force. There are the stars they grew up on.
Millennials were born in the 1980s.
So, no. As usual, everyone forgets that GenX exists.
It used to be that Millennials were held responsible for killing everything. Now they're held responsible for saving everything?
These are bankable assets because everyone is familiar.
One reason might also be how consumption of media have changed. The same stuff isn't repeated as much on main delivery channels.