Right. The point of the scene was to make us think that May was shooting at Fitz with lethal intent. Also, more basically, it needed to convey visually that the glass had been struck by two shots. It's well-known how film and TV tend to exaggerate the effects of bullet hits (e.g. having them spark against metal) so that they'll be visible to the audience; this was another example of the same kind of poetic license.