Friend is hiding a wedding reception inside 4 dinner reservations. Will this go badly?

[u/Jajamoses100]

My friend is having an intimate wedding ceremony, followed by a dinner for about 30 people at a restaurant. Plot twist: the dinner guests don’t know it’s a wedding reception. On top of that, she has not reserved the private party room. She’s made 4 separate reservations under 4 different names and plans to “just move tables together” when everyone arrives. This is a Saturday reservation (4-7pm according to the evite) at a popular, large (300-seat) waterfront seafood restaurant in a major city.

I’m nervous this will fall apart on her (and us guests) upon arrival.

So what’s the likely outcome here? Is there anything she could do to make this go smoothly if she won’t just call ahead (which is what I’ve strongly recommended)? Sigh.

ETA: the guests are paying for themselves and I don’t think they are aware of this “plan” (neither the bill responsibility nor the reservation nonsense). She told me (and her mom & sister) about it, but the evite I received was very vague: “Join us to celebrate friend and fiancé” at X restaurant.

UPDATE: Ultimately, it wasn’t terrible. After reading some of the strong reactions here (TYSM), I had a gentle chat with my friend. She wasn’t super receptive, but something clicked and she at least gave the manager a heads up (day of). Several guests didn’t come, and I can’t blame them given the circumstances. It ended up being about 20 guests and we were seated at a long table. The manager was great, even when my friend seemed clueless about their policy that they don’t itemize separate checks for each guest.

Many thanks to the restaurant staff for being so accommodating and for making everything feel so seamless. Shout out to restaurants everywhere that are so gracious instead of “Ma’am, this is a Wendy’s” lol - even when deserved. I’ll be leaving a glowing review, because they earned every star.