Manifestations and Three Clawsteps

I’m trying to figure out if you can use three clawsteps on manifestations. If so the shenanigans are obviously powerful, but I’m unsure of whether the rules allow it.

Three Clawsteps Ahead itself reads “ Pick a friendly non-Monster Skaven unit that is not in combat and was not set up this turn to use this ability.Effect: That unit can use the 'Normal Move' ability as if it were your movement phase.”

And the core rules have this bullet point about manifestations: “They are treated as if they were units for the purposes of movement, combat range, being in combat and setting up other units.”

Since the Bell of Doom and Vermintide can move and also have the “Skaven” keyword, should Three Clawsteps be able to work on them? Or am I missing something?