Bingowings said:

I think you are over-exaggerating a tad.

It's a Star Wars film so a baton passing motif isn't universe shrinkage it's an object in the fictional universe occupying more than one position in time.

This happens in the real universe.

People buy or come to own objects owned by famous people only for the new owner to also be famous.

As it stands the ship is in the PT only with blue paint scheme and in the background serving no other service than fan service to Easter egg hunters.

But we already have the 'baton passing motif' in the form of the Skywalker saber. The Falcon is undeniably cool, but it wouldn't be symbolic of a greater legacy being passed down. It's just superficial and fanservicey and I agree with everything DominicCobb said.