She's adorable and her bond with her dad is evident.
You can't protect a 1-year old from everything that could possibly make them feel alarmed.
No, you can't, and this is not what I mean. I will explain.
The child is crying in distress, and the distress is clearly not about missing something. I detect confusion, fear, discomfort.
Unfortunately, instead of validating the child's emotions (which sends the message "what you are feeling is real and I am here for you while you deal with it"), the mother tries to reframe them by cheerfully insisting that the child is missing the beard. This, while completely innocent and widespread approach is very confusing to the child and prevents her from feeling her real emotion (which equals healing the distress) and moving on.
The kid goes to feel and discharge anyway, but on her own, without the emotional connection to the parent who insists that she feels something else.
The healthy response to this would be a drama-free "Oh, I see you didn't expect this" and a hug while she cries the distress out.
What I find slightly cruel and disrespectful (as in, I would not do it to an adult friend whom I respect and value): manipulating a situation to see how she'll react, taking a video without her consent, and posting the video without her consent.
If you disagree that it is OK to take a video of someone in distress and post it on youtube without their consent, I guess I have no solid argument. Ultimately this is about acting with respect for human beings, regardless of age, in an age of active age-ism
I know, getting consent about abstract things from one-year-olds is not possible. And no, that's not an excuse for doing them anyway.