Only minorly. We could just as well still talk about phlogiston, which is just negative oxygen.

Not very menaingfully. What does that mean in terms of modern physics? Negatively ionised oxygen? Anti-oxygen? Negatively massive oxygen?

The difference between reduction and elimination is just that in the latter, we do not think the concept is useful anymore

Well, that's a difference.

Only minorly.

Is it minority opinion that reductive materialism and eliminative materialism are different positions?

"The reductive materialist contrasts the eliminativist more strongly, arguing that a mental state is well defined, and that further research will result in a more detailed, but not different understanding.[3]"--WP