Poor installation

Had VM installed today, once the engineer had finished internally, he said he just needed to "tidy up" outside before he would be on his way. We have a VM box on the outside of the wall that was put in by the housebuilders (there is also a coax cable running from her into the property though the installer said he could not use this which I understand). We have been left with the fibre cable exiting the box and a hole drilled at the side which has been covered with white silicone which looks terrible, why could this not go through the box to keep things tidy. I stressed when booking with the salesman I wanted a clean install and was coming back to VM in a new build property as the the stream boxes would give us this inside. I assumed the cable would enter the house through the brown box already in place leaving outside clean and tidy also.