You know, something I thought of...
If you have not noticed, we only had five newcomers with original movesets in Ultimate. (Inkling, Ridley, Simon, King K. Rool and Incineroar), while there were five echoes. (Daisy, Ricther, Chrom, Dark Samus and Ken). One other was a semi-clone, (Isabelle) and with that, we technically had more fighters with copied, non-original movesets (or five and a half counting Isabelle as a half) and even Melee had around eight newcomers, Brawl with 12 newcomers and Smash 4 with 14, all with original movesets, and that is not counting the newcomers who were clones, semi-clones or echoes. That said, I am talking base game for all of these. Imagine how many original newcomers we could get next game in the base game with Smash 6 compared to Ultimate without Everyone is Here.