They had a guy (Velltray Jefferson) ask out of his NLI, so that gave them the opening for Kaho.
They also lost Bryan Thompson (WR) to the portal, but Jaylen Dixon (WR) came back so that was a net neutral
Now, if Nacua leaves, they have one spot remaining. WR is probably the weakest spot though, so they'd want to spend it there if they could. This one definitely hurts (assuming they do eventually lose him)