Minnesota Radon Rules Most of the bad systems I have seen do not have RMT numbers on them. When ever you buy a service there is a way to contact folks in the event of a problem. Many of these bad systems were installed by a family member or a "friend" looking to give someone a deal. Radon systems are pretty basic in nature. The EPA puts out information on effectively notifying the community. If these recommendations were followed errors would decrease.
Dorsey Pic: I do not know what it looks like on the inside. If venting is the only error then the system still works. May get entrainment during summer months but i bet those windows are closed 99.9% of the time.
Mallon Second pic: I think this was a mitigator following up to activate a builders system. This is how plumbers put in systems. I would have them come back and cut a new hole in the roof and repair the old hole. Another perfect example of why you need RMT numbers on all systems installed!!