This is your closest group of friends, a friendship group that your good friend has compromised for you because you will find it very difficult to say a heartfelt thank-you to any of them, I imagine. I don’t blame you.
So I think that if they begin to wonder why you sound less than enthusiastic about having had a stranger-videographer thrust in your personal space for those very special moments as a gift, then I think you must tell the simple truth, which is that you both deliberately chose not to have a videographer because you both really hated the idea and just didn’t want one.
I wouldn’t go as far as volunteering to them just how much it ruined things for you, unless they ask, -just that you wished you had been asked. Your friends do deserve to have a frank admission from you if they ask so that they can reflect, understand and apologise which I’m sure will go some way to validating your feelings, feelings which are perfectly normal by the way.
You will then feel a little better about it all and with their understanding, be more able to put it behind you at least.
So, don’t hide the truth from any of them OP. If and when they ask what you thought of the videographer or when you will be doing the video reveal or however it comes up, say …oh it was unnerving to see somebody in Church filming us when I had planned to avoid that. Or no, we aren’t in a hurry to watch any videos, we just don’t like being filmed at all.
You can put your point across without being impolite as long as you are honest and keep it simple.
I’m sorry you are feeling so sad about it, I completely understand how it could affect you like this.
YANBU at all.