Dryer surprise

This morning I moved a load of clothes from the washer to the dryer. I went outside to look at a project I'm thinking on doing. I was standing by the dryer vent and I thought I would check to make sure the screen was clear. I noticed right away that there was no air coming out of the vent. Not even a warm whisper. My first thought was that what ever the problem it would somehow work it's way out. Then I came to my senses and went to find out what the problem was. I pulled out the dryer and saw what the bottom photo shows. I pulled on an old fleece, grabbed the flashlight and the camera and headed for the basement. I crawled into the crawl space and the air was hot and wet. Everything was covered with lint. The environment was thoroughly damp. I made my way to the place where the vent hose comes through the floor and I discovered what I photographed in the top picture. We paid money to a company to clean that duct just a month or two ago. I found that the hose was split and that an attempt to use tape to effect a repair had been made. If those guys just carried a splice it could have been easily repaired for less than $5.00 in parts. They are fired. I began then and there to make this right.