Makes sense. Kirby games are what Nintendo makes when they need to put out a game, but don't want to spend any money on level designers; modelers; or artists. Take the last game, rearrange a few assets, maybe slap on a visual filter or a new gimmick that's only used a few times, and you're good to go. Nintendo could probably create a new Kirby game completely by AI at this point, and you'd probably never notice a difference.
Edit: Well...this aged well. Guess Nintendo decided after 20+ years that they should finally do something new with Kirby.