No they shouldn't eat them. They contain raw egg yolks, which are a no-no for children, elderly and pregnant women (I fall into category 3 of this

)
Also, looking at the recipe, it looks like the alcohol isn't cooked down much, unless it's mixed with HOT coffee.
Ingredients:
1 pound milk chocolate
¼ cup espresso coffee
5 egg yolks
¼ cup + 1 tablespoon sugar
6 sheets gelatin
½ cup Kahlua Liqueur
4 cups heavy cream
¾ cup white chocolate ganache
¼ cup dark chocolate ganache
sponge cake (store-bought or your favorite recipe)
Method:
1. Melt milk chocolate.
2. Whip heavy cream to soft peaks.
3. Mix yolks with sugar.
4. Soften gelatin leaves in cold water.
5. Mix gelatin with Kahlua and coffee. Set bowl over hot water bath to dissolve the gelatin.
6. Fold 1/3 of whipped cream into the chocolate.
7. Add the yolks, then the gelatin mixture.
8. Fold in the rest of the cream.
9. Pour mousse in flexipan domes almost to the top.
10. Place sponge circle (1/4" thick yellow cake cut in a circle) on top. Leave in the freezer to set.
11. Once hard, unmold and place in glazing racks.
12. Make white chocolate ganache and chocolate ganache.
13. Put chocolate ganache in a pastry bag. Ladle white chocolate ganache to cover each dome. Simultaneously, pipe a stripe design of chocolate ganache over the dome.
14. Refrigerate to allow the glaze to set.
15. Decorate the bottom edge with coffee crunch.
16. Place a chocolate covered coffee bean on the center of each dome.