This is a really interesting question.
I hate myself for saying this but if I was in the restaurant and there was any noise/video flickering etc then I would probably ask the waiter to ask you to leave!
I feel so mean for writing it but I honestly would.
Although when push came to shove I might just mutter under my breath and sent over dirty looks in that very English way of complaining.
If we're away for a romantic weekend, we want to get away from kids and the thought of someone else baby monitoring crackling and flashing would be too much!
Having said that, I don't know what sort of hotel it is, so maybe they are cool with that because everyone is a parent with kids in the situation.
Sorry for being negative