What I am trying to explain is that everyone is 100% sure their agency is doing everything possible to make sure they thrive and survive... until they find that the agency only looks out for its own best interests. The Guilty before proven Innocent concept is BS and not everyone that has been expelled was expelled for a justifiable reason. To automatically assume that someone that has been expelled did something wrong is almost as stupid as assuming the guy that shot someone breaking into his house is guilty of leaving his door open so he could kill someone.
There are a lot of narrow counter-examples that could be given, and as for being connected to events, as an IT, I get connected to a lot of events. Instructors swimming away from their students and leaving them with an AOW, other ITs completing an ITC from 1000 miles away over the phone, students receiving certifications without completing the required dives, agencies fudging paperwork to pacify a student, instructors taking money for a class knowing that they arent certified to teach the class, uncertified divers finishing an open water dives with a master diver and the instructor diving with their significant other instead of being with the student. I could go on for hours on the things I have seen, but the end result is that instructors here are telling someone that is concerned about an instructor that the instructor is guilty because he has been expelled before the instructors or the OP even know what the person was guilty of. When the SHTF for one of you and you get expelled for something you didnt do, you might look back on this and wish someone might have stood up for you and helped you prove your innocence before they tell everyone that if you got expelled, you are guilty of something, even if they dont know what you are guilty of.
One last note... quit looking at agencies as the be all, end all of the dive industry. They are businesses and will do what they want to survive and hang out anyone necessary to cover their own. There are instances that the agency does the right thing, but put them in a position of dropping someone to prevent any hassles and see how fast the letter gets sent out. The rose colored glasses are a blinder, not a fashion accessory.