That's not how clones work though.
Whenever you are first making a
Smash roster, ALL clones should be assumed to be cut by default. If you have enough spare development time after you finish the base roster, then you can start adding the clones.
Say that neither Robin or Corrin were cut from the roster in
Smash 5. OK now say that Robin was cut yet Corrin remains. Now say both Robin and Corrin ended up being cut. In all three of these scenarios, Lucina may still get in the roster because she is quite simple to make. However, Lucina may also NOT get in if they don't have the development time to make clones.
Saying that


are more likely to stay than

is pretty much comparing apples to oranges. Their possible reasons for being cut and/or remaining on the roster are completely different from each other.