it isn't exclusive but it would make sense... what doesn't make sense is that Ni-Oh was PlayStation exclusive.
Team Ninja had history on Xbox with Ninja Gaiden, Ninja Gaiden 2, Dead or Alive 3, DoA Ultimate, DoA Extreme, DoA 4 and DoA Extreme 2 all being Xbox exclusive games. (the Ninja Gaiden titles eventually getting rereleases, very controversial ones, on PlayStation of course)
they had way nore Xbox exclusive games in their library than any other system... so it would make more sense than Ni-Oh being PS4/5 exclusive, but here we are lol