I see this from the other perspective - since we were considering removing Finn’s line about “Palpatine has always wanted Rey alive,” but we weren’t sure how to make the scene work without that line, I say we should just axe the whole scene. If we assume that they learn about Exegol and how to get there just by tracking Rey, we won’t need D-O for anything except toy sales.
That would require some editing of the scene where they’re tracking Rey, and I don’t think that would be better than just cutting Finn’s last line about Palpatine wanting Rey alive. In the original, after Finn told them that D-0 had information on Rey, they started looking at D-0’s information talking about the planet and how difficult it would be to get through, only for 3P0 and R2 to then present the solution of tracking Rey. The beginning bit where they’re talking about Exogol’s surroundings doesn’t make sense if they don’t know where Exogol is yet.
Also, if Finn doesn’t get information about Exogol from D-0, then D-0 literally does nothing and serves no function in the movie.