Sure, if you throw them into a tormented Crew they do not want to go there.
Question is if one could Position them so that they engage enemy models to their advantage with 2 inch Range thereby draining enemy AP to move/disengage before attack, or at least make the opponent alter his Game Plan which would tip the AP advantage more in my favour at that Point
Also yeah this may work only once, but after the first time, your opponent will expect it and adapt his Positioning, which actually may be an advantage for me.
Biggest Concern would be getting torn apart before the rest of the Crew gets a move on and the 8 SS Tidecaller not doing anything meaningful after that until turn 3. But, many things have to wait until the field test, still not sure how bubbly i will have to play EVS to be effective