Yes and No.

For purely logistical reasons in the ceremony I'm going to say no.

There is no in built power storage in this light. Meaning you will have to plug in. You're going to need a long cable/extension leads as you can't guarantee where the nearest power outlet will be. Trailing cables are a health and safety nightmare, and I can't see many venues being happy with this.

For both this and any off camera flash; People move. You won't easily be able to reposition your light to light your subject in case you miss a shot and you won't be able to shout at an assistant to change it for you. Putting up multiple lights at various positions will likely get in other peoples views and annoy them.

For the group shots, where you pose people in front of you. Yes it will. But don't forget to worry about trailing leads, and requirement of a power outlet. 'We want pictures by this pond with the swans'. 'sorry my cable won't reach'. Posed shots, the cycling time shouldn't matter (comparitvely) though.

I'd recommend the speedlights. Have a go E-TTL hotshoe sync chords during the ceremony, take off camera with triggers for any posed.