Facon? Seriously?
Part of keeping kosher is avoiding misleading others that something is kosher when it is not.
For example, going to a non kosher restaurant and eating food you brought from home would not be ideal because it may confuse a stupid Jewish person into thinking the restaurant is kosher. Basically, one needs to avoid the appearance of impropriety.
This restaurant is edgy and a bit woke and likes to dance on the edge of what is permitted — fake cheese on a burger, for example.
So it’s getting a bit of grief.
That said, petty silly ruling, in that you can buy kosher turkey bacon all day long in Israel.